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Zhang F, Guo J, Li P, Zhao F, Yang X, Cheng Q, Elmore JS, Wang P, Cui C. Effects of different thawing methods on physical and physicochemical properties of frozen dough and quality of corresponding steamed bread. Food Chem 2024; 447:138932. [PMID: 38484546 DOI: 10.1016/j.foodchem.2024.138932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/20/2024] [Accepted: 03/01/2024] [Indexed: 04/10/2024]
Abstract
The thawing method is critical for the final quality of products based on the frozen dough. The effects of ultrasound thawing, proofer thawing, refrigerator thawing, water bath thawing, ambient thawing, and microwave thawing on the rheology, texture, water distribution, fermentation characteristics, and microstructure of frozen dough and the properties of steamed bread were investigated. The results indicated that the ultrasound thawing dough had better physicochemical properties than other doughs. It was found that ultrasound thawing restrained the water migration of dough, improved its rheological properties and fermentation capacity. The total gas volume value of the ultrasound thawing dough was reduced by 21.35% compared with that of unfrozen dough. The ultrasound thawing dough displayed a thoroughly uniform starch-gluten network, and an enhanced the specific volume and internal structure of the steamed bread. In conclusion, ultrasound thawing effectively mitigated the degradation of the frozen dough and enhanced the quality of steamed bread.
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Affiliation(s)
- Fan Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Jinying Guo
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China.
| | - Peiyao Li
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Fen Zhao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Xue Yang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Qiaofen Cheng
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6DZ, UK
| | - J Stephen Elmore
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading RG6 6DZ, UK
| | - Ping Wang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Can Cui
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
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2
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Yang Q, Guo J, Zhang F, Zhao F, Zhang G. Inulin with different degrees of polymerization as a functional ingredient: Evaluation of flour, dough, and steamed bread characteristics during freezing. Food Chem X 2024; 22:101431. [PMID: 38764781 PMCID: PMC11101675 DOI: 10.1016/j.fochx.2024.101431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 04/04/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
In the study, the effects of short-chain inulin (OP), natural inulin (OH), and long-chain inulin (OHP) at substitution levels of 3%, 6%, and 9%, as well as freezing of 0, 15, and 30 days, on the farinograph and extensograph characteristics of flour, the rheological properties, water distribution, and microstructure of dough, as well as the quality of the final steamed bread, were investigated. The findings revealed that inulin led to a reduction in the water absorption of the dough while increasing its stable time. Furthermore, inulin delayed the alteration of freezable water within the frozen dough. Notably, the addition of inulin resulted in a more cohesive and evenly arranged network structure within the frozen dough. Steamed bread supplemented with 6% OP, 6% OH, and 3% OHP consistently dislayed a higher specific volume and spread ratio. These findings offer valuable insights into the utilization of inulin in frozen wheat foods.
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Affiliation(s)
- Qing Yang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Jinying Guo
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Fan Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Fen Zhao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
| | - Gege Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, Henan Province, PR China
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3
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Yang Y, Zhang Q, Zhang R, Jiao A, Jin Z. Effects of different polysaccharide colloids on the structure and physicochemical properties of peanut protein and wheat gluten composite system under extrusion. Int J Biol Macromol 2024:132773. [PMID: 38823746 DOI: 10.1016/j.ijbiomac.2024.132773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/13/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
The structure and physicochemical properties of the complex system of peanut protein and gluten with different concentrations (0 %, 0.5 %, 1 %, and 2 %) of carboxymethyl cellulose (CMC) or sodium alginate (SA) under high-moisture extrusion were studied. The water absorption index and low-field nuclear magnetic resonance showed that adding 0.5 % SA could significantly improve the water uniformity of peanut protein extrudates, while the increase in water absorption was not significant. The texture properties showed that adding CMC or SA increased the hardness, vertical shearing force, and parallel shearing force of the system. Furthermore, adding 0.5 % SA increased approximately 33 % and 75.2 % of the tensile distance and strength of the system, respectively. The secondary structure showed that CMC or SA decreased the proportion of α-helix, β-turn, and random coil, while increased β-sheet proportion. The results of hydrophobicity, unextractable protein, and endogenous fluorescence revealed that CMC and SA reduced the surface hydrophobicity of the system and caused fluorescence quenching in the system. Additionally, it was found that CMC generally increased the free sulfhydryl group content, while SA exhibited the opposite effect.
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Affiliation(s)
- Yueyue Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qi Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Ruixin Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Aiquan Jiao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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4
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Xie L, Liu M, Zeng H, Zheng Z, Ye Y, Liu F. Effects of purple cabbage anthocyanin extract on the gluten characteristics and the gluten network evolution of high-gluten dough. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38779957 DOI: 10.1002/jsfa.13598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/06/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Anthocyanins are polyphenolic pigments that have hypoglycemic, antioxidation, anti-aging, and other effects. Research has shown that polyphenols can optimize the processing of dough and improve the texture and nutritional characteristics of dough products. The formation of gluten networks is decisive for the quality of flour products. The effects of purple cabbage anthocyanin (PCA) extract on the structure, microscopic morphology, and network formation of gluten protein were studied, and the types of cross-linking between PCA and gluten protein are discussed. RESULTS The results show that PCA extract increased the free sulfhydryl (SH) group content and the free amino group of gluten proteins, stimulated an increase in the β-sheet ratio and the decrease of α-helix ratio, and increased the gluten index significantly (P < 0.05). The PCA extract also induced gluten protein aggregation, increased the height of protein molecular chains, and stimulated the formation of gluten networks. When PCA extract concentrations were 4 g kg-1 and 8 g kg-1, the gluten network was more homogeneous, continuous, and dense. CONCLUSION Appropriate anthocyanins have a positive effect on the properties of gluten and promote the formation of gluten networks. Excessive anthocyanins destroy gluten protein interaction and harm gluten cross-linking. This study may provide a useful source of data for the production of functional flour products rich in anthocyanins. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Li Xie
- Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Minglong Liu
- Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Huawei Zeng
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Department of Bioengineering, College of Life Science, Huaibei Normal University, Huaibei, China
| | - Zhi Zheng
- Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Yongkang Ye
- Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Fengru Liu
- Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
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5
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Abker AM, Xia Z, Hu G, Fu X, Zhang Y, Jin Y, Ma M, Fu X. Using salted egg white in steamed bread: Impact on functional and structural characteristics. Food Chem 2024; 454:139609. [PMID: 38795615 DOI: 10.1016/j.foodchem.2024.139609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/28/2024]
Abstract
Steamed bread has long been an important part of Chinese cuisine. This study investigated the effects of salted egg white (SEW) (5, 10, 15, and 20% w/w) on the quality of steamed breads. Findings revealed that SEW notably enhanced the bread's volume and texture, with a 20% inclusion significantly boosting water retention and rheological properties, albeit reducing bread's lightness. In addition, the H-bond absorption band intensity in the Fourier transform infrared spectroscopy (FTIR) analysis showed increased peak intensities with higher SEW levels, indicative of protein structure alterations. X-ray diffraction confirmed the presence of an amylose-lipid complex. Scanning electron microscope (SEM) and Confocal laser scanning microscope (CLSM) imaging depicted a smooth, consistent protein network with SEW addition. Consumer sensory evaluation responded favourably to the SEW15 steamed bread, suggesting its potential for food industry application. Overall, the study considers SEW an effective ingredient for improving steamed bread quality.
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Affiliation(s)
- Adil M Abker
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Institute for Agro-Industries, Industrial Research and Consultancy Centre (IRCC), Khartoum, Sudan
| | - Zhijun Xia
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Gan Hu
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Xiaowen Fu
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yixin Zhang
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yongguo Jin
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Meihu Ma
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xing Fu
- National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Xia P, Zheng Y, Sun L, Chen W, Shang L, Li J, Hou T, Li B. Regulation of glycose and lipid metabolism and application based on the colloidal nutrition science properties of konjac glucomannan: A comprehensive review. Carbohydr Polym 2024; 331:121849. [PMID: 38388033 DOI: 10.1016/j.carbpol.2024.121849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
The physicochemical properties of dietary fiber in the gastrointestinal tract, such as hydration properties, adsorption properties, rheological properties, have an important influence on the physiological process of host digestion and absorption, leading to the differences in satiety and glucose and lipid metabolisms. Based on the diversified physicochemical properties of konjac glucomannan (KGM), it is meaningful to review the relationship of structural characteristics, physicochemical properties and glycose and lipid metabolism. Firstly, this paper bypassed the category of intestinal microbes, and explained the potential of dietary fiber in regulating glucose and lipid metabolism during nutrient digestion and absorption from the perspective of colloidal nutrition. Secondly, the modification methods of KGM to regulate its physicochemical properties were discussed and the relationship between KGM's molecular structure types and glycose and lipid metabolism were summarized. Finally, based on the characteristics of KGM, the application of KGM in the main material and ingredients of fat reduction food was reviewed. We hope this work could provide theoretical basis for the study of dietary fiber colloid nutrition science.
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Affiliation(s)
- Pengkui Xia
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ying Zheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Li Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenxin Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Longchen Shang
- College of Biological and Food Engineering, Hubei Minzu University, Enshi 445000, China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China.
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.
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7
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Yan S, Yan X, Li Y, Qi B. Comparison of pH-induced protein-polyphenol self-assembly methods: Binding mechanism, structure, and functional characteristics. Food Chem 2024; 438:137996. [PMID: 37979260 DOI: 10.1016/j.foodchem.2023.137996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/06/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
Herein, we used pH-shifted and pH-driven methods to assemble kidney-bean protein isolate (KPI) and luteolin (Lut) into a nanocomplex and subsequently investigated their binding mechanism, structure, and functional properties. Results showed that the nanocomplex prepared by the pH-driven method exhibited a better encapsulation effect and controlled release of Lut. Fluorescence spectroscopy and molecular docking analysis showed that the binding affinities under alkaline conditions were higher than those under acidic and neutral conditions. Various spectral techniques were used to determine the structural changes in the KPI-Lut nanocomplex, including the transformation of α-helices and β-sheets and alteration of specific amino acid microenvironments, which were more pronounced in the pH-driven nanocomplex. The structural changes in the nanocomplex further affected their surface hydrophobicity and thermal stability. Additionally, the combination of KPI and Lut significantly improved the antioxidant activity and α-glucosidase inhibitory ability of the resultant nanocomplexes, particularly the one prepared by the pH-driven method.
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Affiliation(s)
- Shizhang Yan
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xinyue Yan
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baokun Qi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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8
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Zhao Q, She Z, Hou D, Wang J, Lan T, Lv X, Zhang Y, Sun X, Ma T. Effect of partial substitution of wheat flour with kiwi starch on dough rheology, microstructure, the quality attributes and shelf life of Chinese steamed bread. Int J Biol Macromol 2024; 258:128920. [PMID: 38141697 DOI: 10.1016/j.ijbiomac.2023.128920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/27/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Chinese steamed bread (CSB), a conventional high-GI staple food, with a short shelf life and a single flavor. In this work, 10-20 % kiwi starch (KS) was used to substitute wheat flour for the production of CSB and the effects of different substitution ratios on the quality and shelf life of mixed flour, dough, and CSB were explored. The results showed that the substitution of KS could improve the water binding capacity of mixed flour and lead to easier pasting in the system, lower the cooking power consumption, increase and improve the viscoelasticity and gas holding capacity of the dough, and make the microstructure more compact and uniform. As the substitution ratio increased, the reduction in protein content within the system further affected the formation of the gluten network, leading to a significant decrease in the CSB's specific volume and cohesiveness, whereas the chewiness and hardness were significantly improved. Meanwhile, KS substitution significantly reduced the starch hydrolysis rate and estimated glycemic index of CSB. 10 % KS substitution enriched the aroma and color of CSB, improved its internal organizational structure, and became more popular among consumers. A substitution ratio of 15-20 % was beneficial for extending the shelf life of CSB.
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Affiliation(s)
- Qinyu Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Zhenyun She
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Danting Hou
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Jiaqi Wang
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Tian Lan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xinran Lv
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yuanke Zhang
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Xiangyu Sun
- College of Enology, Northwest A&F University, Yangling 712100, China
| | - Tingting Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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9
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Liu S, Gu S, Shi Y, Chen Q. Alleviative effects of mannosylerythritol lipid-A on the deterioration of internal structure and quality in frozen dough and corresponding steamed bread. Food Chem 2024; 431:137122. [PMID: 37573742 DOI: 10.1016/j.foodchem.2023.137122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/17/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
The effects of mannosylerythritol lipid-A (MEL-A) on the quality of frozen dough and corresponding steamed bread were investigated. The results revealed that the rheological properties of frozen dough were improved with the increment of MEL-A (0%-2.0%). Adding 1.5% and 2% MEL-A significantly reduced the moisture migration and enhanced the water-holding capacity of the frozen dough. Microstructure observation demonstrated that high levels of MEL-A enabled more starch granules to be embedded in the dough network. A series of product quality assessments illustrated that frozen dough steamed bread containing 2.0% of MEL-A had the largest specific volume (2.981 mL/g), the highest springiness (77.47%), more uniform and porous crumb structure. Moreover, MEL-A exhibited a positive effect on steamed bread's flavor profile, which was explored for the first time in this study. Hence, these results suggested that MEL-A has promising applications as a novel dough improver in the food industry.
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Affiliation(s)
- Siyu Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China
| | - Simin Gu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ying Shi
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Qihe Chen
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Future Food Laboratory, Innovation Center of Yangtze River Delta, Zhejiang University, Jiaxing 314102, China.
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10
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Azhar B, Gunawan S, Febriana Setyadi ER, Majidah L, Taufany F, Atmaja L, Aparamarta HW. Purification and separation of glucomannan from porang tuber flour ( Amorphophallus muelleri) using microwave assisted extraction as an innovative gelatine substituent. Heliyon 2023; 9:e21972. [PMID: 38034783 PMCID: PMC10682115 DOI: 10.1016/j.heliyon.2023.e21972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 10/24/2023] [Accepted: 11/01/2023] [Indexed: 12/02/2023] Open
Abstract
Gelatine is frequently used as a food ingredient. However, Indonesia imports almost all of its gelatine, totaling 3990152 tons annually. Gelatine could be replaced with glucomannan compound which was found in porang tubers. However, it also contains calcium oxalate, which is harmful for the human body. In this study, calcium oxalate was first eliminated by the purification process using 10 % NaCl (w/w). Moreover, the microwave-assisted extraction method was used to extract the glucomannan compound by applying 300 W of microwave power with different extraction times (5, 10, 15, and 20 min) and different ethanol concentrations (60, 70, 80, and 96 %). Statistical analysis was used to optimize and identify significant parameters influencing the glucomannan concentration. The best conditions for glucomannan extraction were an extraction time of 10 min and an ethanol concentration of 80 % (v/v), resulting in a glucomannan yield of ≥96 %. Machine learning was successfully applied for data modelling using a Long Short-Term Memory block with an average R-square of 0.9772 (97.72 % accuracy) and an average MSE of 4.7719. Furthermore, physical and chemical characteristics of the extracted porang flour were accorded with SNI gelatine standards 06-3735 in 1995, which consisted of glucomannan (96.359 ± 1.164 %), calcium oxalate (0.009 ± 0.001 %), water (2.290 ± 0.986 %), ash (0.018 ± 0.002 %), fat (0.0235 ± 0.120 %), heavy metals (not identified), and pH (6.455 ± 0.191). Finally, the extracted glucomannan can be used as a potential regional substitute for gelatine production.
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Affiliation(s)
- Badril Azhar
- Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, 60111, Indonesia
| | - Setiyo Gunawan
- Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, 60111, Indonesia
| | | | - Lailiyah Majidah
- Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, 60111, Indonesia
| | - Fadlilatul Taufany
- Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, 60111, Indonesia
| | - Lukman Atmaja
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, 60111, Indonesia
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11
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Wang S, He J, Huang S, Li B. Application of Konjac Glucomannan with Chitosan Coating in Yellow Alkaline Noodles. Foods 2023; 12:3569. [PMID: 37835221 PMCID: PMC10572429 DOI: 10.3390/foods12193569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 09/16/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
To improve the quality of the characteristics of yellow alkaline noodles and enrich their nutritional value, konjac glucomannan (KGM) with or without chitosan coating were added to noodles, and their application effects were investigated in terms of color, texture, water absorption, starch digestion, total plate count (TPC) and microstructure. Chitosan-konjac glucomannan (CK) complex was firstly prepared by embedding konjac powder with chitosan sol. After embedding, the hydrophilicity of KGM decreased significantly. Then, either CK or native KGM were mixed evenly with flour before saline water, and soda was subsequently added to produce noodles. Compared with native KGM, CK provided the noodles with a higher brightness and a lighter yellow color. In terms of texture properties, although the firmness of CK noodles was weaker than that of KGM noodles, the tensile properties were enhanced. After embedding, the water absorption of CK noodles decreased and the content of resistant starch (RS) in the noodles increased. During storage, the TPC in CK noodles was significantly lower than that in KGM noodles. At a CK content of 5%, the noodles presented a lightness of 87.41, a b value of 17.75, a shear work of 39.9 g·cm, a tensile distance of 84.28 cm, a water absorption of 69.48%, a RS content of 17.97% and a TPC of 2.74 lg CFU/g at 10 days. In general, KGM with chitosan coating could improve the physicochemical qualities of noodles and extend their shelf life to a certain extent.
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Affiliation(s)
- Shishuai Wang
- College of Food Science and Technology, Wuhan Business University, Wuhan 430056, China
| | - Jiaxin He
- College of Food Science and Technology, Wuhan Business University, Wuhan 430056, China
| | - Shanshan Huang
- College of Food Science and Technology, Wuhan Business University, Wuhan 430056, China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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12
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Wang X, Li X, Zhang L, An L, Guo L, Huang L, Gao W. Recent progress in plant-derived polysaccharides with prebiotic potential for intestinal health by targeting gut microbiota: a review. Crit Rev Food Sci Nutr 2023:1-30. [PMID: 37651130 DOI: 10.1080/10408398.2023.2248631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Natural products of plant origin are of high interest and widely used, especially in the food industry, due to their low toxicity and wide range of bioactive properties. Compared to other plant components, the safety of polysaccharides has been generally recognized. As dietary fibers, plant-derived polysaccharides are mostly degraded in the intestine by polysaccharide-degrading enzymes secreted by gut microbiota, and have potential prebiotic activity in both non-disease and disease states, which should not be overlooked, especially in terms of their involvement in the treatment of intestinal diseases and the promotion of intestinal health. This review elucidates the regulatory effects of plant-derived polysaccharides on gut microbiota and summarizes the mechanisms involved in targeting gut microbiota for the treatment of intestinal diseases. Further, the structure-activity relationships between different structural types of plant-derived polysaccharides and the occurrence of their prebiotic activity are further explored. Finally, the practical applications of plant-derived polysaccharides in food production and food packaging are summarized and discussed, providing important references for expanding the application of plant-derived polysaccharides in the food industry or developing functional dietary supplements.
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Affiliation(s)
- Xiaozhen Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Luyao Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Lingzhuo An
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Lanping Guo
- National Resource Center for Chinese Materia Medica, Academy of Chinese Medical Sciences, Beijing, China
| | - Luqi Huang
- National Resource Center for Chinese Materia Medica, Academy of Chinese Medical Sciences, Beijing, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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13
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Cao X, Islam MN, Lu D, Han C, Wang L, Tan M, Chen Y, Xin N. Effects of barley seedling powder on rheological properties of dough and quality of steamed bread. FOOD SCI TECHNOL INT 2023:10820132231188988. [PMID: 37464807 DOI: 10.1177/10820132231188988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
In order to find the optimal share of barley seedling powder (BSP) to improve the rheological properties of wheat dough and physico-chemical properties of steamed bread (SB), BSP was added with wheat flour at various proportions (2-10%). Results showed that with the increasing amount of BSP additive, the farinograph index (86.33-123), dough stability (9.37-12.63 min), and dough development time (6.23-7.63 min) in blend flour increased. Similarly, with the increasing BSP, SB became darker and more greenish, and the total flavonoid content increased. The content of chlorophyll-b, and total chlorophyll demonstrated a faster increase than that of chlorophyll-a. The hardness and chewability of SB improved as well whereas the springiness increased first and then decreased. The best springiness and gumminess of SB were found with 2% and 8% BSP additives respectively. 2%, 4%, and 6% addition of BSP resulted in a slight fluctuation in the bound water quantity than 8% and 10% BSP additive. No new compound formation was confirmed by Infrared analysis and there was only a heat and mass transfer process. Results from this study indicated that SB with improved quality attributes can be prepared from wheat flour fortified with BSP at 2-4%.
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Affiliation(s)
- Xiaohuang Cao
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin, China
| | - Md Nahidul Islam
- Department of Agro-Processing, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
- Institute of Food Safety and Processing, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Dandan Lu
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
| | - Congying Han
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
| | - Lei Wang
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
| | - Mingxiong Tan
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin, China
| | - Yuan Chen
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin, China
| | - Ning Xin
- School of Chemistry and Food Science, Yulin Normal University, Yulin, China
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14
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Cheng Y, Jiang J, Chen Q, Wang Z, Zeng M, Qin F, Chen J, He Z. Radio-frequency treatment of medium-gluten wheat: effects of tempering moisture and treatment time on wheat quality. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4441-4449. [PMID: 36869599 DOI: 10.1002/jsfa.12539] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 02/09/2023] [Accepted: 03/03/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Wheat and wheat flour are important raw materials of staple foods. Medium-gluten wheat is now the dominant wheat in China. In order to expand the application of medium-gluten wheat, radio-frequency (RF) technology was used to improve its quality. Effects of tempering moisture content (TMC) of wheat and RF treatment time on wheat quality were investigated. RESULTS No evident change in protein content after RF treatment, but a reduction in wet gluten content of the sample with 10-18% TMC and RF treatment for 5 min, was observed. By contrast, protein content increased to 31.0% after RF treatment for 9 min in 14% TMC wheat, achieving the requirement of high-gluten wheat (≥30.0%). Thermodynamic and pasting properties indicated that RF treatment (14% TMC, 5 min) can alter the double-helical structure and pasting viscosities of flour. In addition, the results of textural analysis and sensory evaluation for Chinese steamed bread showed that RF treatment for 5 min with different TMC (10-18%) wheat could deteriorate wheat quality, while the wheat (14% TMC) treated with RF for 9 min had the best quality. CONCLUSION RF treatment for 9 min can improve wheat quality when the TMC was 14%. The results are beneficial to the application of RF technology in wheat processing and improvement of wheat flour quality. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yong Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Jun Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Qiuming Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Zhaojun Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Fang Qin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
| | - Zhiyong He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, China
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15
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Lu P, Guo J, Fan J, Wang P, Yan X. Combined effect of konjac glucomannan addition and ultrasound treatment on the physical and physicochemical properties of frozen dough. Food Chem 2023; 411:135516. [PMID: 36696719 DOI: 10.1016/j.foodchem.2023.135516] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/02/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
The effects of dual sequential modification using konjac glucomannan and ultrasound treatments at power densities of 15-37.5 W/L on the hydration, rheology and structural characteristics of frozen dough were investigated in this study. The results revealed that the konjac glucomannan and ultrasound treatments improved the textural properties of frozen dough, but had a negative impact on its viscoelasticity. Furthermore, konjac glucomannan and ultrasound treatments increased the content of free sulfhydryl group and disulfide bond, as well as improved the freeze tolerance of dough. The results exhibited that the enthalpy of frozen dough decreased by 20.42 % compared with the frozen blank control dough under ultrasonic power density of 22.5 W/L. The network structure of frozen dough treated by konjac glucomannan and ultrasound was more ordered and integral than that of frozen blank control dough. These results provide valuable knowledge on the application of konjac glucomannan and ultrasound to frozen wheat-based foods.
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Affiliation(s)
- Peng Lu
- College of Food and Bioengineering, Henan University of Science and Technology, 471023 Luoyang, Henan Province, P.R. China
| | - Jinying Guo
- College of Food and Bioengineering, Henan University of Science and Technology, 471023 Luoyang, Henan Province, P.R. China.
| | - Jiawei Fan
- College of Food and Bioengineering, Henan University of Science and Technology, 471023 Luoyang, Henan Province, P.R. China
| | - Ping Wang
- College of Food and Bioengineering, Henan University of Science and Technology, 471023 Luoyang, Henan Province, P.R. China
| | - Xiang Yan
- College of Food and Bioengineering, Henan University of Science and Technology, 471023 Luoyang, Henan Province, P.R. China
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16
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Xie L, Zhou W, Zhao L, Peng J, Zhou X, Qian X, Lu L. Impact of okara on quality and in vitro starch digestibility of noodles: The view based on physicochemical and structural properties. Int J Biol Macromol 2023; 237:124105. [PMID: 36948342 DOI: 10.1016/j.ijbiomac.2023.124105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/17/2023] [Accepted: 03/16/2023] [Indexed: 03/24/2023]
Abstract
The development of cereal foods with slow starch digestibility is important for the general improvement of human health. In this study, the quality properties of noodles with added okara, in vitro starch digestibility, and the underlying mechanisms of the influence of okara on noodles were studied. Low concentrations (5 and 10 %) of okara improved the texture, cooking, and sensory properties of the noodles. Okara decreased the rapidly digestible starch (RDS) content, increased the resistant starch (RS) content, and reduced the predicted glycaemic index (pGI) of noodles. The pasting viscosity, thermal stability, and dynamic rheological results indicated that okara improved the starch crystallite stability of wheat flour and viscoelasticity of dough. Moreover, Fourier transform infrared (FTIR) spectroscopy showed that okara promoted the formation of starch-lipid complexes and improved the short-range structural order of starch. Additionally, microstructure imaging and protein network analysis (PNA) indicated that low addition of okara promoted the compactness of the okara-gluten-starch matrix, thus reducing the contact between starch and hydrolytic enzymes. These results reveal the effect of okara on the quality properties and starch digestibility in a starch-gluten complex system.
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Affiliation(s)
- Le Xie
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China; Hunan Provincial Key Laboratory of Soybean Products Processing and Safety Control, Shaoyang 422000, Hunan Province, PR China
| | - Wenhua Zhou
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China
| | - Liangzhong Zhao
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, Hunan Province, PR China; Hunan Provincial Key Laboratory of Soybean Products Processing and Safety Control, Shaoyang 422000, Hunan Province, PR China
| | - Jing Peng
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China
| | - Xiaojie Zhou
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China; Hunan Provincial Key Laboratory of Soybean Products Processing and Safety Control, Shaoyang 422000, Hunan Province, PR China
| | - Xin Qian
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China
| | - Lu Lu
- School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, Hunan Province, PR China; National Engineering Research Center for Rice and By-product Deep Processing, Changsha 410004, Hunan Province, PR China; Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha 410004, Hunan Province, PR China.
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17
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Liu L, Zhang Y, Dao L, Huang X, Qiu R, Pang J, Wu S. Efficient and accurate multi-scale simulation for viscosity mechanism of konjac glucomannan colloids. Int J Biol Macromol 2023; 236:123992. [PMID: 36898457 DOI: 10.1016/j.ijbiomac.2023.123992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/23/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
The viscosity is a foundational parameter of biomacromolecule in the food industry. The viscosity of macroscopic colloids is closely related to the dynamical behaviors of mesoscopic biomacromolecule clusters, which are difficult to be investigated at molecular resolution by common methods. In this study, based on experimental data, multi-scale simulations combining microscopic molecular dynamics simulation, mesoscopic Brownian dynamics simulation, and macroscopic flow field construction were used to investigate the dynamical behaviors of mesoscopic clusters of konjac glucomannan (KGM) colloids (~500 nm) over a long time (~100 ms). Numerical statistical parameters of the mesoscopic simulation of macroscopic clusters were proposed and proved to represent the viscosity of colloids. Based on the intermolecular interaction and macromolecular conformation, the mechanism of the shear thinning effect was revealed as both the regular arrangement of macromolecules at low shear rates (<100 s-1) and structural collapse of macromolecules at high shear rates (>500 s-1). Then, the effect of molecular concentration, molecular weight, and temperature on the colloid viscosity and cluster structure of KGM colloids was investigated by experiments and simulations. This study provides a novel multi-scale numerical method and insight into the viscosity mechanism of biomacromolecule.
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Affiliation(s)
- Lu Liu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yanting Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Liping Dao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xin Huang
- College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, China
| | - Renhui Qiu
- College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
| | - Shuyi Wu
- College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350108, China.
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18
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Wang Y, Guo J, Wang C, Li Y, Bai Z, Luo D, Hu Y, Chen S. Effects of konjac glucomannan and freezing on thermal properties, rheology, digestibility and microstructure of starch isolated from wheat dough. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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19
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Liu Y, Zhang Q, Wang Y, Xu P, Wang L, Liu L, Rao Y. Enrichment of Wheat Bread with Platycodon grandiflorus Root (PGR) Flour: Rheological Properties and Microstructure of Dough and Physicochemical Characterization of Bread. Foods 2023; 12:foods12030580. [PMID: 36766109 PMCID: PMC9914062 DOI: 10.3390/foods12030580] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Platycodon grandiflorus (Jacq.) A.DC. root (PGR) flour is well known for its medical and edible values. In order to develop nutritionally fortified products, breads were prepared using wheat flour, partially replaced with PGR flour. The rheological properties and microstructure of dough and the physicochemical characterization of bread were investigated. Results showed that lower level of PGR addition (3 and 6 g/100 g) would improve the baking performance of breads, while the higher level of PGR addition (9 g/100 g) led to smaller specific volume (3.78 mL/g), increased hardness (7.5 ± 1.35 N), and unpalatable mouthfeel (21.8% of resilience and 92.6% of springiness) since its negative effect on the viscoelasticity and microstructure of dough. Moreover, sensory evaluation analysis also showed that the PGR3 and PGR6 breads exhibited a similar flavor to the control bread, but the 9 g/100 g addition of PGR provided bread with an unpleasant odor through its richer volatile components. As expected, the phenolic content and antioxidant capacity of bread increased significantly (p < 0.05) as PGR flour was added to the bread formulation. The total phenolic content (TPC) ranged from 14.23 to 22.36 g GAE/g; thus, DPPH• and ABTS•+ scavenging capacity increased from 10.44 and 10.06 μg Trolox/g to 14.69 and 15.12 μg Trolox/g, respectively. Therefore, our findings emphasized the feasibility of PGR flour partially replacing wheat flour in bread-making systems.
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Affiliation(s)
- Yuanyuan Liu
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Qian Zhang
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yuhan Wang
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
| | - Pingkang Xu
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Luya Wang
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
| | - Lei Liu
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
- State Key Laboratory of Veterinary Etiological Biology, Chinese Academy of Agricultural Sciences, Lanzhou Veterinary Research Institute, College of Veterinary Medicine, Lanzhou University, Lanzhou 730099, China
- Correspondence: (L.L.); (Y.R.); Tel./Fax: +86-028-87720552 (L.L.)
| | - Yu Rao
- School of Food Science and Bioengineering, Xihua University, Chengdu 610039, China
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
- Correspondence: (L.L.); (Y.R.); Tel./Fax: +86-028-87720552 (L.L.)
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20
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Song Y, Huang D, Guo W, Gao Y, Xue F, Xiong X, Li C. Physicochemical and Structural Properties of Gluten-Konjac glucomannan Conjugates Prepared by Maillard Reaction. Polymers (Basel) 2023; 15:polym15030631. [PMID: 36771931 PMCID: PMC9921320 DOI: 10.3390/polym15030631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
Gluten (Glu) is important to wheat products by forming a three-dimensional matrix. This study aimed to investigate the physicochemical and structural properties of gluten after conjugation with konjac glucomannan (KGM) through the Maillard reaction. The study revealed that the degree of graft increased with the prolonged reaction time. The Glu-KGM conjugates were possessed of increased β-sheet but decreased α-helix and β-turn, as well as unfolding and loose tertiary structures as the reaction proceeded. Among three different proportions, the Glu-KGM 1:1 conjugate was proved to have the most excellent foaming and emulsifying properties, and could form more rigid and firm gelation structures, which could be related to the decreased particle size and increased zeta potential of the conjugate. Overall, the physicochemical and structural properties of gluten were significantly related to the KGM ratios as well as the reaction period.
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Affiliation(s)
- Yukang Song
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Danping Huang
- Nanjing Station of National Light Industry Food Quality Supervision and Inspection, Nanjing 211816, China
| | - Wanchun Guo
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yiqing Gao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Feng Xue
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaohui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Chen Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
- Correspondence: ; Tel.: +86-138-13362715
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21
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Study on the quality characteristics of hot-dry noodles by microbial polysaccharides. Food Res Int 2023; 163:112200. [PMID: 36596138 DOI: 10.1016/j.foodres.2022.112200] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
Abstract
The effect of curdlan gum (CG), gellan gum (GG), and xanthan gum (XG) on the quality characteristics of hot-dry noodles (HDN) was investigated. The rheology properties were used to evaluate the quality of the dough, the textural, viscosity, cooking characteristics and water states were investigated to study the quality changes of HDN. Three microbial polysaccharides were found that it could improve the quality of wheat flour and significantly increase the starch viscosity of HDN and delay the water migration rate of HDN. When 0.2% CG, 0.5% GG, and 0.5% XG were added, the HDN showed the best flour swelling power, texture, and tensile properties, and the structure of gluten network was significantly improved. The flourier transform infrared spectroscopy results showed that microbial polysaccharides with appropriate concentrations changed the formation of hydrogen bond in HDN, decreased α-helix and increased β-turn content. Meanwhile, the relative continuous and complete gluten network was formed, which could be proven by microstructure observation. This study provides a reference for functionality applications of HDN with microbial polysaccharides.
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22
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Effect of Mealworm Powder Substitution on the Properties of High-Gluten Wheat Dough and Bread Based on Different Baking Methods. Foods 2022; 11:foods11244057. [PMID: 36553798 PMCID: PMC9778090 DOI: 10.3390/foods11244057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/03/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Mealworms (Tenebrio molitor) are protein-rich edible insects that have been regarded as novel food ingredients. In this study, high-gluten wheat flour was formulated with dried mealworm powder at various levels (0%, 5%, 10%, 15%, and 20%) to study its influence on the pasting, farinograph, and extensograph properties and microstructure of the dough. A subsequent decrease in the pasting parameters was observed due to starch dilution. The water absorption, dough development time, and dough stability time decreased gradually from 71.9% to 68.67%, 13.6 min to 10.43 min, and 14.1 min to 5.33 min, respectively, with the increase in the substitution of mealworm powder from 0% to 20%. The farinograph characteristics corresponded to a weak gluten network formed through the dilution of gluten by the replacement of wheat flour with a non-gluten ingredient. The stretch ratio of the high-gluten dough increased gradually from 4.37 (M0) to 6.33 (M15). The increased stretching resistance and extensibility of the dough with 5% and 10% mealworm powder indicated that mealworm powder can act as a plasticizer in the gluten network, which might contribute to the decreased strength and increased elasticity and flexibility of the dough network. The bread made with three different baking methods showed similar increases in specific volume and decreased hardness up to the 10% substitution level, owing to the increased elasticity and flexibility of the dough. The GB/T 35869-2018 Rapid-baking method, GB/T 14611-2008 Straight dough method, and automatic bread maker method exhibited the highest specific volumes of 3.70 mL/g, 3.79 mL/g, and 4.14 mL/g when the wheat flour was substituted with 10% mealworm powder. However, 15% and 20% mealworm powder substitution markedly reduced the bread quality owing to the dilution effect and mealworm powder phase separation. These results provide a perspective on the relationship between the rheological properties of mealworm powder-substituted high-gluten dough and application suggestions for insect food development in the food industry.
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23
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Chen X, Zhang H, Zhu L, Wu G, Cheng L, Li J. Effects of structural barriers on digestive properties of highland barley as compared with unpolished rice and oats. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Zhou B, Dai Y, Guo D, Zhang J, Liang H, Li B, Sun J, Wu J. Effect of desalted egg white and gelatin mixture system on frozen dough. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Impact of garlic oligosaccharide fractions on microcosmic, mesoscopic, or macroscopic characteristics of dough. Food Res Int 2022; 160:111739. [DOI: 10.1016/j.foodres.2022.111739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/08/2022] [Accepted: 07/21/2022] [Indexed: 11/21/2022]
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Effects of composition, starch structural orders, and kernel structure on starch in vitro digestion of highland barley. Carbohydr Polym 2022; 301:120274. [DOI: 10.1016/j.carbpol.2022.120274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/16/2022] [Accepted: 10/25/2022] [Indexed: 11/23/2022]
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27
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Bai N, Guo XN, Xing JJ, Zhu KX. Effect of freeze-thaw cycles on the physicochemical properties and frying performance of frozen Youtiao dough. Food Chem 2022; 386:132854. [PMID: 35366630 DOI: 10.1016/j.foodchem.2022.132854] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/21/2022] [Accepted: 03/27/2022] [Indexed: 11/28/2022]
Abstract
The impact of freeze-thaw cycles on the physicochemical properties and frying performance of frozen Youtiao dough with chemical leavening agent was investigated. The specific volume of Youtiao made from frozen dough decreased by 66% after 4 freeze-thaw cycles. Meanwhile, the hardness and puncture force showed increasing trends, and the fibrous structure became unclear. The extensibility, storage modulus (G') and loss modulus (G'') of frozen Youtiao dough decreased during freeze-thaw cycles, while the creep compliance increased. Changes in rheological properties demonstrated that frozen Youtiao dough was more deformable and its strength was weakened. Moreover, the sodium dodecyl sulfate (SDS) extractable protein and free sulfhydryl content increased, revealing that protein was depolymerized. The loose structure with large pores and fractured protein network were observed by micromorphology. Freeze-thaw cycles had a detrimental effect on the Youtiao quality, which was related to the deterioration of rheological properties and protein structure of frozen Youtiao dough.
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Affiliation(s)
- Ni Bai
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China
| | - Xiao-Na Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China.
| | - Jun-Jie Xing
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China
| | - Ke-Xue Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, PR China
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Influence of substituting wheat flour with quinoa flour on quality characteristics and in vitro starch and protein digestibility of fried-free instant noodles. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Guo D, Yin X, Cheng H, Chen J, Ye X. Fortification of Chinese Steamed Bread with Glycyrrhizauralensis Polysaccharides and Evaluation of Its Quality and Performance Attributes. Foods 2022; 11:foods11152253. [PMID: 35954030 PMCID: PMC9368352 DOI: 10.3390/foods11152253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
Natural polysaccharides are new popular healthy food material, and the materials are widely used in various functional foods. The influences of polysaccharides from Glycyrrhiza uralensis on the quality and sensory properties of Chinese steamed bread (CSB), as well as the performance (starch digestion in vitro and starch staling) of CSB, were investigated in this study. The addition of Glycyrrhiza polysaccharide (GP) increased the specific volume of CSB in a dose-dependent manner, and the specific volume of CSB-2 was 2.55 mL/g. GP also contributed to the increase in hardness (from 1240.17 to 2539.34 g) and chewiness (893.85 to 1959.27 g) of fresh CSB. In addition, GP could maintain the integrity of the protein network within the CSB. The scores for sensory evaluation indicators of CSB-1 were relatively balanced. More importantly, the addition of GP altered starch digestive properties, and the content of the resistant starch (RS) was increased from 8.62 (CSB-0) to 43.46% (CSB-2). GP led to a significant reduction of the expected glycemic index (eGI) of CSB, and the eGI of CSB was decreased from 97.50 (CSB-0) to 73.8 (CSB-2), which was classified as a medium-GI (MGI) food. In addition, X-ray diffraction (XRD) and differential scanning calorimeter (DSC) revealed the addition of GP delayed the staling of CSB during storage. In general, adding the proper amount of GP could improve the quality of CSB and show the potential as a functional component of CSB to reduce the postprandial blood glucose level resulted by the CSB.
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Affiliation(s)
- Dongqi Guo
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Ningbo Research Institute, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.Y.); (H.C.); (J.C.)
- Production & Construction Group Key Laboratory of Special Agricultural Products Further Processing in Southern Xinjiang, College of Food Science and Engineering, Tarim University, Alar 843300, China
- Correspondence: (D.G.); (X.Y.)
| | - Xiuxiu Yin
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Ningbo Research Institute, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.Y.); (H.C.); (J.C.)
| | - Huan Cheng
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Ningbo Research Institute, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.Y.); (H.C.); (J.C.)
| | - Jianle Chen
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Ningbo Research Institute, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.Y.); (H.C.); (J.C.)
| | - Xingqian Ye
- National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Ningbo Research Institute, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; (X.Y.); (H.C.); (J.C.)
- Correspondence: (D.G.); (X.Y.)
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Effect of Partial Substitution of Flour with Mealworm (Tenebrio molitor L.) Powder on Dough and Biscuit Properties. Foods 2022; 11:foods11142156. [PMID: 35885398 PMCID: PMC9316987 DOI: 10.3390/foods11142156] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023] Open
Abstract
Mealworm (Tenebrio molitor L.) is a type of edible insect rich in protein that has become popular as a protein-alternative ingredient in flour-based products to improve the nutritional properties of baking products. The mealworm powder substitution affected the pasting, farinograph, extensograph properties of wheat flour and the texture, nutritional, and sensory properties of the resulting soda biscuit. The pasting parameters (peak viscosity, trough viscosity, breakdown viscosity, final viscosity, and setback viscosity) and the water absorption decreased with the increased mealworm powder substitution level, which was ascribed to the dilution effect of mealworm powder. The farinograph parameters remained similar up to 15% substitution level. The extensograph results showed that mealworm powder substitution decreased the elastic properties of wheat dough as indicated by the consistently decreased extensibility, stretching energy, and stretching resistance, resulting in a significantly decreased baking expansion ratio of the soda biscuit. The protein, lipid, and dietary fiber content of the biscuits increased accordingly with the increased mealworm powder substitution level. The protein content of the soda biscuit was gradually increased from 9.13/100 g for the control (M0) to 16.0/100 g for that supplemented with 20% mealworm powder (M20), accompanied with the significantly increased essential amino acid content. Meanwhile, the fat and dietary fiber content of M20 exhibited 20.5 and 21.7% increase compared to those of M0. The score of the sensory attributes showed no significant difference up to 15% substitution level. The results demonstrated the 15% mealworm powder substitution level would not significantly affect the farinograph property, microstructure of wheat dough, and sensory acceptability.
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Effect of Highland Barley on Rheological Properties, Textural Properties and Starch Digestibility of Chinese Steamed Bread. Foods 2022; 11:foods11081091. [PMID: 35454677 PMCID: PMC9025642 DOI: 10.3390/foods11081091] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 01/27/2023] Open
Abstract
Highland barley has a different composition and structure to other crops. It has higher contents of total polyphenol (TPC), total flavonoid (TFC) and β-glucan, which can be supplemented to improve the nutrition of wheat-flour-based food. In this study, the flours of three different grain-colored highland barley varieties Beiqing 6 (BQ), Dulihuang (DLH), and Heilaoya (HLY), were added to Jimai60 (JM, a wheat variety with medium gluten) wheat flour at different substitution levels to investigate their effects on the unextractable polymeric protein (UPP) content, micro-structure, rheological properties and mixing properties of dough, and the color, texture, flavor, and in vitro digestion of Chinese steam bread (CSB). The results showed that the moderate substitution of highland barley (20%) increased the UPP%, optimized the micro-structure of gluten, and improved its rheological properties by increasing dough viscoelasticity. The CSBs made from the composite flours exhibited a similar specific volume, cohesiveness, springiness and resilience to wheat CSB, while the firmness of composite CSBs (particularly JM-HLY-20) was delayed during storage. Importantly, the addition of highland barley increased the contents of TPC, TFC and β-glucan, but decreased the in vitro starch digestibility of CSBs. A sensory evaluation showed that JM-HLY CSB was the most preferable. Taken together, highland barley can be used as a fine supplement to food products, with health-promoting properties.
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Zhang W, Ren X, Zhang L, Chen J. Preparation and Performance of Thickened Liquids for Patients with Konjac Glucomannan-Mediated Dysphagia. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072194. [PMID: 35408593 PMCID: PMC9000327 DOI: 10.3390/molecules27072194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/19/2022] [Accepted: 03/24/2022] [Indexed: 12/03/2022]
Abstract
The present study sought to characterize the rheological and thickening properties of Konjac glucomannan (KGM) and prepare thickening components for special medical purposes using KGM and maltodextrin as the primary raw materials and guar gum (GG), xanthan gum (XG), locust bean gum (LBG), and carrageenan (KC) as the supplemented materials. The formulation and preparation processes were optimized through single factor experiments taking sensory evaluation as an indicator. The results confirm that KGM had excellent thickening performance, reaching about 90 times its own mass. The optimal formulation process of the thickening components based on KGM was as follows: the mass concentration of the compound thickener (KGM/GG/XG/LBG/KC = 13:2:2:2:1) was 5.0–7.0 mg/mL; the maltodextrin concentration was 10.0 mg/mL; the brewing temperature of the thickening component was 60 °C with no restriction on consumption time. The rheology test results revealed that the thickening components had shear thinning characteristics, which could provide three different thickening effects of nectar-thick level (350 mPa·s), honey-thick level (1250 mPa·s), and pudding-thick level (1810 mPa·s) suitable for people with different degrees of chewing disorders. Overall, this study provides a theoretical basis and technical reference for KGM as a dietary nutrition support for patients with dysphagia.
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Affiliation(s)
- Wen Zhang
- Correspondence: ; Tel.: +86-029-86168583
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Marchetti MD, Gómez PL, Yeannes MI, Garcia Loredo AB. Structure of fish proteins as modified by salting procedures: A rheological and ultrastructural analysis of hake (Merluccius hubbsi) fillets. J Food Sci 2022; 87:1134-1147. [PMID: 35122242 DOI: 10.1111/1750-3841.16056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/29/2021] [Accepted: 12/27/2021] [Indexed: 11/28/2022]
Abstract
Salting is a technique used for preserving fish meat and allows obtaining added value products. The salting process provokes several structure modifications, which in turns cause changes in the fish texture. Thus, the objective of this study was to investigate the effect of three salting procedures (dry salting [DS], mixed salting [MS] and brining [BS]) on the rheology and structure of Merluccius hubbsi (Argentine hake). Rheological properties were evaluated using dynamic oscillatory and thermorheology tests, and the structure changes by scanning electron microscopy. DS samples showed the highest values of salt concentration referred to liquid phase (zNaCl ), while BS showed the lowest ones. In all cases, elastic (G') and loss (G″) modulus increased with salting time. G' values exceeded G″ values, indicating a predominant solid behavior. DS samples presented the greatest increase in rheological parameters (G', G″ and η*). Thermomechanical spectra allowed to identify an increase in denaturation temperature (Td) of proteins (myosin and actin) for DS and MS, and to a lesser extent for BS (Td = 46.7 ± 0.4°C, Td = 50.3 ± 0.8°C, Td = 58.8 ± 0.6°C and Td = 58.2 ± 0.9°C for fresh, BS, MS and DS, respectively). Ultrastructural images evidenced conformational changes on the myofibrillar proteins and the connective tissue (collagen). BS caused the least superficial damage to hake tissue. Based on the results, BS could be the method recommended for the industrial production of salted M. hubbsi. PRACTICAL APPLICATION: During salting of hake, variations in water and salt content have a significant effect on the myofibrillar and connective tissue proteins. The study of rheological properties and microstructure allows a better understanding of the conformational changes induced by the salting process. The least surface damage exhibited by brining fillets is consistent with the mass transfer mechanism that leads to the formation of a film on the muscle surface that dilutes the salt; for this reason, compared to dry and mixed salting, brining could be the method recommended for the industrial production of salted (>15% w/w) Merluccius hubbsi.
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Affiliation(s)
- Marion D Marchetti
- Food Quality and Preservation, INCITAA, Faculty of Engineering, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Paula L Gómez
- National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.,Institute of Food Technology and Chemical Process (ITAPROQ), CONICET-University of Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - María I Yeannes
- Food Quality and Preservation, INCITAA, Faculty of Engineering, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Analía B Garcia Loredo
- Food Quality and Preservation, INCITAA, Faculty of Engineering, National University of Mar del Plata, Mar del Plata, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
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Zheng S, Yang Y, Li Z, Pan Z, Huang Z, Ai Z. A Comparative Study of Different Freezing Methods on Water Distribution, Retrogradation and Digestion Properties of Liangpi (Starch Gel Food). STARCH-STARKE 2022. [DOI: 10.1002/star.202100205] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuaishuai Zheng
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Yong Yang
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
| | - Zhen Li
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhili Pan
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhongmin Huang
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
| | - Zhilu Ai
- College of Food Science and Technology Henan Agricultural University Zhengzhou 450002 China
- Key Laboratory of Staple Grain Processing Ministry of Agriculture and Rural Affairs Zhengzhou 450002 China
- National R&D Center For Frozen Rice&Wheat Products Processing Technology Zhengzhou 450002 China
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35
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Cryoprotective effect of wheat gluten enzymatic hydrolysate on fermentation properties of frozen dough. J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2022.103423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Guo J, He Y, Liu J, Wu Y, Wang P, Luo D, Xiang J, Sun J. Influence of konjac glucomannan on thermal and microscopic properties of frozen wheat gluten, glutenin and gliadin. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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