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Han TY, Guo XN, Zhu KX. Insights into the mechanisms underlying ethanol-induced changes in the dough mechanical properties and quality characteristics of fresh noodles. Food Chem 2024; 440:138205. [PMID: 38113647 DOI: 10.1016/j.foodchem.2023.138205] [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: 09/07/2023] [Revised: 11/30/2023] [Accepted: 12/10/2023] [Indexed: 12/21/2023]
Abstract
This study investigated the effects of ethanol (0 %∼6%) on the dough mechanical properties and quality characteristics of fresh noodles and elucidated the relationship between the above changes and physicochemical, structural, and molecular properties of gluten. Ethanol reduced the water absorption (from 59.00 % to 52.33 %), stability time (from 8.17 min to 3.33 min) and viscoelasticity of dough, and increased the development time, weakening degree and compliance. Ethanol also decreased the fracture stress of dough sheet, and increased fracture elongation and adhesiveness (from 46.15 g·s to 75.88 g·s). Ethanol decreased the noodles' hardness (from 5347.41 g to 4442.34 g), break force, tensile distance, and water absorption, while cooking loss was increased. SEM and CLSM showed that ethanol destroyed the compactness of internal structure and inhibited the formation of gluten network in noodles. According to the results of SE-HPLC and RP-HPLC, ethanol dissolved part of the gliadin and inhibited the polymerization of protein.
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Affiliation(s)
- Tian-Yang Han
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China.
| | - Xiao-Na Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China.
| | - Ke-Xue Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu Province, PR China.
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Huang Z, Liu Y, An H, Kovacs Z, Abddollahi M, Sun Z, Zhang G, Li C. Utilizing Haematococcus pluvialis to simulate animal meat color in high-moisture meat analogues: Texture quality and color stability. Food Res Int 2024; 175:113685. [PMID: 38128978 DOI: 10.1016/j.foodres.2023.113685] [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: 08/18/2023] [Revised: 10/06/2023] [Accepted: 11/06/2023] [Indexed: 12/23/2023]
Abstract
The effect of Haematococcus pluvialis (HP) (0.25∼1.25 %) as a colorant during high moisture extrusion (50 %) on the texture and microstructural properties of soy protein-based high moisture meat analogs (HMMA) was evaluated. Furthermore, the stability of HP-induced meat like color of the HMMA as a function of light exposure, freeze/thawing, frozen storage and cooking temperature and duration was investigated. The addition of HP reduced the elasticity of HMMA but enhanced its hardness, chewiness, and resilience. HP addition at low levels promoted the flexible and disordered regions within the protein secondary structure while excessive HP addition was unfavorable for protein cross-linking. The optimal degree of texturization was achieved with 0.75 % HP. Sensory evaluations revealed that HMMA with 1 %HP had a color similar to fresh beef sirloin, while HMMA with 0.25 % HP had a color closer to fresh pork loin. Light exposure induced the greatest color loss of the meat analogs compared with the cooking and frozen storage. The a* value of HMMA containing 1.25 % HP decreased by 30 % during the 14 days of light exposure. Frozen storage at darkness efficiently preserved the meat-like color of the extrudates. Overall, HP was found as promising colorant for HMMA production but the storage condition of the extrudates should be carefully optimized.
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Affiliation(s)
- Zehua Huang
- National Engineering Research Center of Wheat and Corn Further Processing, College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China; Department of Measurements and Process Control, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 14-16 Somlói Street, H-1118 Budapest, Hungary.
| | - Ying Liu
- National Engineering Research Center of Wheat and Corn Further Processing, College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Hongzhou An
- National Engineering Research Center of Wheat and Corn Further Processing, College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China.
| | - Zoltan Kovacs
- Department of Measurements and Process Control, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, 14-16 Somlói Street, H-1118 Budapest, Hungary
| | - Mehdi Abddollahi
- Department of Life Sciences-Food and Nutrition Science, Chalmers University of Technology, Kemigården 4, Gothenburg SE-41296, Sweden
| | - Zhongke Sun
- College of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Gaoyang Zhang
- College of Biological Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Chengwei Li
- National Engineering Research Center of Wheat and Corn Further Processing, College of Food Science and Engineering, Henan University of Technology, 100 Lianhua Street, Zhengzhou, Henan Province 450001, People's Republic of China
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Quantitative analysis perspective: Ice growth and super-chilling state of frozen dough under quick freezing. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Guan E, Zhang T, Wu K, Yang Y, Bian K. Physicochemical properties and gluten structures of frozen steamed bread dough under freeze–thaw treatment affected by gamma-polyglutamic acid. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Biotechnological production and application of epsilon-poly-L-lysine (ε-PL): biosynthesis and its metabolic regulation. World J Microbiol Biotechnol 2022; 38:123. [PMID: 35637397 DOI: 10.1007/s11274-022-03304-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/06/2022] [Indexed: 10/18/2022]
Abstract
Epsilon-poly-L-lysine (ε-PL) is an unusual biopolymer composed of L-lysine produced by several microorganisms, especially by the genus Streptomyces. Due to its excellent antimicrobial activity, good water solubility, high safety, and biodegradable nature, ε-PL with a GRAS status has been widely used in food and pharmaceutical industries. In the past years, studies have focused on the biotechnological production of ɛ-PL, the biosynthetic mechanism of microbial ɛ-PL, and its application. To provide new perspectives from recent advances, the review introduced the methods for the isolation of ɛ-PL producing strains and the biosynthetic mechanism of microbial ɛ-PL. We summarized the strategies for the improvement of ɛ-PL producing strains, including physical and chemical mutagenesis, ribosome engineering and gene engineering, and compared the different metabolic regulation strategies for improving ɛ-PL production, including medium optimization, nutrient supply, pH control, and dissolved oxygen control. Then, the downstream purification methods of ɛ-PL and its recent applications in food and medicine industries were introduced. Finally, we also proposed the potential challenges and the perspectives for the production of ε-PL.
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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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