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Çalışkan Koç G, Yüksel Sarıoğlu H, Dirim SN, Pandiselvam R. Storage of spinach juice agglomerates: Physical, flow, structural, and thermal properties. J Texture Stud 2023. [PMID: 37798875 DOI: 10.1111/jtxs.12803] [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: 03/07/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 10/07/2023]
Abstract
The objective of this study was to investigate how the various storage temperatures affected the physical properties, flow characteristics, microstructure, and glass transition temperature of spinach juice agglomerates. For this purpose, spray-dried spinach juice powders were processed to agglomerates by using a modified fluidized bed dryer (1.6 m/s airflow rate, 60°C drying air temperature, 20 min processing time, and with different binder solutions containing agents as maltodextrin, gum Arabic, and whey powder isolate). The analyses were carried out every month throughout 6 months while the spinach juice agglomerates were stored at temperatures of 4, 20, and 35°C. The results revealed that over the storage time, the moisture content and water activity values of the agglomerates were generally under 11% and 0.6, respectively. The color values generally showed a decreasing trend depending on the storage time. The solubility times of the samples stored at 4°C were longer than those of stored at other storage temperatures. The SJA-GA had the lowest HR and CI values and thus the best flowability properties during all storage times. There was no detectable change in the structures of SJA stored at 20°C according to the storage time. Throughout the storage time, it was discovered that the glass transition temperature of all spinach juice agglomerates was remarkably similar. Overall, the investigation revealed that storage at 35°C for 6 months might be suitable because it delivered the intended outcomes such as greater flowability and cohesiveness, and shorter wettability and solubility times.
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Affiliation(s)
- Gülşah Çalışkan Koç
- Eşme Vocational School, Food Processing Department, Food Technology Program, Uşak University, Uşak, Turkey
| | | | - Safiye Nur Dirim
- Department of Food Engineering, Ege University, Bornova, Izmir, Turkey
| | - Ravi Pandiselvam
- Physiology, Biochemistry and Post-Harvest Technology Division, ICAR-Central Plantation Crops Research Institute, Kasaragod, Kerala, India
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Gong Q, Liu C, Tian Y, Zheng Y, Wei L, Cheng T, Wang Z, Guo Z, Zhou L. Effect of cavitation jet technology on instant solubility characteristics of soymilk flour: Based on the change of protein conformation in soymilk. ULTRASONICS SONOCHEMISTRY 2023; 96:106421. [PMID: 37137245 PMCID: PMC10176257 DOI: 10.1016/j.ultsonch.2023.106421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
The protein conformation of soymilk is the key to affecting the instant solubility of soymilk flour. This study aimed to evaluate the effect of cavitation jet treatment time (0, 2, 4, 6, and 8 min) on the instant solubility of soymilk flour based on the conformational changes of protein in soymilk. The results showed that the cavitation jet treatment for 0-4 min significantly unfolded the protein structure of soymilk and increased the content of soluble protein, which reduced the particle size and increased the electrostaticrepulsion and the viscosity of soymilk. This was beneficial for soymilk droplets fully atomized and repolymerized in the spray drying tower, forming soymilk flour particles with large size, smooth surface, and uniform distribution. When the cavitation jet treatment time was 4 min, the wettability (from 127.3 ± 2.5 s to 84.7 ± 2.1 s), dispersibility (from 70.0 ± 2.0 s to 55.7 ± 2.1 s), and solubility (from 56.54% to 78.10%) of soymilk flour were significantly improved. However, when the time of the cavitation jet treatment was extended to 8 min, the protein of soymilk aggregated and the stability of soymilk decreased, which reduced the particle size and hurt the surfacecharacteristics of soymilk flour after spraydrying. It resulted in a decrease in the instant solubility of soymilk flour. Therefore, the cavitationjet treatment with proper time increases the instant solubility of soymilk flour by improving the protein conformation of soymilk.
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Affiliation(s)
- Qi Gong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Caihua Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yachao Tian
- College of Food Science and Engineering, Qilu University of Technology, Jinan, Shandong 250300, China
| | - Yuxuan Zheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Libin Wei
- Suzhou Taicang Science And Technology Bureau Productivity Promotion Center, Suzhou, Jiangsu 215411, China
| | - Tianfu Cheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Heilongjiang Beidahuang Green and Healthy Food Co., Ltd., Jiamusi, Heilongjiang 154007, China
| | - Zhongjiang Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zengwang Guo
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Linyi Zhou
- College of Food and Health, Beijing Technology and Business University, Haidian, Beijing 100048, China.
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Perez-Pirotto C, Moraga G, Hernando I, Cozzano S, Arcia P. Sorption Isotherms, Glass Transition and Bioactive Compounds of Ingredients Enriched with Soluble Fibre from Orange Pomace. Foods 2022; 11:foods11223615. [PMID: 36429206 PMCID: PMC9689554 DOI: 10.3390/foods11223615] [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: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Citrus fruits are one of the main crops worldwide. Its industrialization, primarily juice production, produces large amounts of byproducts, composed of seeds and peels, that can be used to obtain new ingredients. In this study, sorption behaviour, glass transition, mechanical properties, colour and bioactives of four different soluble fibre-enriched powders obtained from orange pomace using green technologies were studied. Powders were equilibrated at water activities between 0.113 and 0.680 for fifteen weeks at 20 °C, and studies were performed to indicate the best storing conditions to ensure the glassy state of the amorphous matrix and higher bioactive stability. By combining the Gordon and Taylor model with the Henderson isotherm, the critical water activity and content for storage in a glassy state were determined. The ingredient obtained after extrusion + hot water is the most stable, which is also the one with the highest dietary fibre content. Powder obtained by jet cooking is the least stable, as it is not in a glassy state at any water activity at room temperature. To increase storage stability, these should be stored at refrigeration temperatures.
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Affiliation(s)
- Claudia Perez-Pirotto
- Departamento de Ingeniería, Universidad Católica del Uruguay, Montevideo 11600, Uruguay
- Food Microstructure and Chemistry Research Group, Department of Food Technology, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Gemma Moraga
- Food Microstructure and Chemistry Research Group, Department of Food Technology, Universitat Politècnica de València, 46022 Valencia, Spain
- Correspondence:
| | - Isabel Hernando
- Food Microstructure and Chemistry Research Group, Department of Food Technology, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Sonia Cozzano
- Departamento de Ingeniería, Universidad Católica del Uruguay, Montevideo 11600, Uruguay
| | - Patricia Arcia
- Departamento de Ingeniería, Universidad Católica del Uruguay, Montevideo 11600, Uruguay
- Latitud LATU Foundation, Montevideo 11500, Uruguay
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Liu Y, Gao H, Zeng J, Zhang K, Dai Y. Effect of canna edulis ker flour on quality of quick‐frozen dumpling wrappers. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yufen Liu
- School of Food Science Henan Institute of Science and Technology Xinxiang Henan 453003 China
| | - Haiyan Gao
- School of Food Science Henan Institute of Science and Technology Xinxiang Henan 453003 China
| | - Jie Zeng
- School of Food Science Henan Institute of Science and Technology Xinxiang Henan 453003 China
| | - Keke Zhang
- School of Food Science Henan Institute of Science and Technology Xinxiang Henan 453003 China
| | - Yunfei Dai
- School of Food Science Henan Institute of Science and Technology Xinxiang Henan 453003 China
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Henning FG, Ito VC, Demiate IM, Lacerda LG. Non-conventional starches for biodegradable films: A review focussing on characterisation and recent applications in food. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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