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Du C, Zhu S, Li Y, Yang T, Huang D. Selenium-enriched yeast, a selenium supplement, improves the rheological properties and processability of dough: From the view of yeast metabolism and gluten alteration. Food Chem 2024; 458:140256. [PMID: 38959802 DOI: 10.1016/j.foodchem.2024.140256] [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: 03/12/2024] [Revised: 06/12/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
This study investigated the effect mechanism of selenium (Se)-enriched yeast on the rheological properties of dough from the perspective of yeast metabolism and gluten alteration. As the yeast Se content increased, the gas production rate of Se-enriched yeast slowed down, and dough viscoelasticity decreased. The maximum creep of Se-enriched dough increased by 29%, while the final creep increased by 54%, resulting in a softer dough. Non-targeted metabolomics analyses showed that Se inhibited yeast energy metabolism and promoted the synthesis of stress-resistance related components. Glutathione, glycerol, and linoleic acid contributed to the rheological property changes of the dough. The fractions and molecular weight distribution of protein demonstrated that the increase in yeast Se content resulted in the depolymerization of gluten. The intermolecular interactions, fluorescence spectrum and disulfide bond analysis showed that the disruption of intermolecular disulfide bond induced by Se-enriched yeast metabolites played an important role in the depolymerization of gluten.
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Affiliation(s)
- Chaodong Du
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Song Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Yue Li
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Tian Yang
- Analysis and Testing Center, Jiangnan University, Wuxi 214122, China
| | - Dejian Huang
- Department of Food Science and Technology, National University of Singapore, 117542, Singapore
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Lemus-Conejo A, Villanueva-Lazo A, Martin ME, Millan F, Millan-Linares MC. Sacha Inchi ( Plukenetia volubilis L.) Protein Hydrolysate as a New Ingredient of Functional Foods. Foods 2024; 13:2045. [PMID: 38998552 PMCID: PMC11241537 DOI: 10.3390/foods13132045] [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: 06/07/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
Sacha inchi (Plukenetia volubilis L.) is an under-exploited crop with great potential due to its nutritional and medicinal characteristics. A Sacha inchi protein isolate (SII), obtained from defatted Sacha inchi flour (SIF), was hydrolyzed by Bioprotease LA 660 under specific conditions. The hydrolysates were characterized chemically, and their digestibility and antioxidant capacity were evaluated by in vitro cell-free experiments to select the hydrolysate with major antioxidant activity. Sacha inchi protein hydrolysate at 20 min (SIH20B) was selected, and the anti-inflammatory capacity was evaluated by RT-qPCR and ELISA techniques, using two different doses in monocytes THP-1 stimulated with lipopolysaccharide (LPS). The results obtained showed that the in vitro administration of SIH20B down-regulated the TNF-α gene and reduced the release of this cytokine, whereas the anti-inflammatory cytokines IL-10 and IL-4 were up-regulated in LPS-stimulated monocytes and co-administrated with SIH20B. The peptides contained in SIH20B were identified, and the 20 more relatively abundant peptides with a mass by 1 kDa were subjected to in silico analysis to hypothesize those that could be responsible for the bioactivity reported in the hydrolysate. From the identified peptides, the peptides AAGALKKFL and LGVKFKGGL, among others, are proposed as the most biologically actives. In conclusion, SIH20B is a novel, natural source of high-value-added biopeptides that could be used as an ingredient in formulations of food or nutraceutical compounds.
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Affiliation(s)
- Ana Lemus-Conejo
- Foundation Centre for Research and Development of Functional Food-CIDAF, Avda del Conocimiento 37, 18100 Granade, Spain
| | - Alvaro Villanueva-Lazo
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
| | - Maria E Martin
- Department of Cell Biology, Faculty of Biology, University of Seville, Av. Reina Mercedes s/n, 41012 Seville, Spain
| | - Francisco Millan
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
| | - Maria C Millan-Linares
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
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Shen H, Yan M, Liu X, Ge X, Zeng J, Gao H, Zhang G, Li W. Wheat starch particle size distribution regulates the dynamic transition behavior of gluten at different stages of dough mixing. Int J Biol Macromol 2023; 244:125371. [PMID: 37330103 DOI: 10.1016/j.ijbiomac.2023.125371] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 06/19/2023]
Abstract
This study investigated the morphology distribution, molecular structure, and aggregative properties variation of gluten protein during dough mixing stage and interpreted the interaction between starch with different sizes and protein. Research results indicated that mixing process induced glutenin macropolymer depolymerization, and promoted the monomeric protein conversion into the polymeric protein. Appropriate mixing (9 min) enhanced the interaction between wheat starch with different particle sizes and gluten protein. Confocal laser scanning microscopy images showed that a moderate increase in B-starch content in the dough system contributed to forming a more continuous, dense, and ordered gluten network. The 50A-50B and 25A-75B doughs mixed for 9 min exhibited a dense gluten network, and the arrangement of A-/B-starch granules and gluten was tight and ordered. The addition of B-starch increased α-helixes, β-turns, and random coil structure. Farinographic properties indicated that 25A-75B composite flour had the highest dough stability time and the lowest degree of softening. The 25A-75B noodle displayed maximum hardness, cohesiveness, chewiness, and tensile strength. The correlation analysis indicated that starch particle size distribution could influence noodle quality by changing the gluten network. The paper can provide theoretical support for regulating dough characteristics by adjusting the starch granule size distribution.
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Affiliation(s)
- Huishan Shen
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Mengting Yan
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Xinyue Liu
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Xiangzhen Ge
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jie Zeng
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China
| | - Haiyan Gao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, Henan, PR China
| | - Guoquan Zhang
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Wenhao Li
- Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
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Wu Q, Tian Q, Zhang D, Zhang Y. Effect of Sitophilus zeamais (Coleoptera: Curculionidae) Infestation on the Protein Physicochemical and Structural Properties of Wheat Grain. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:2092-2104. [PMID: 36287645 DOI: 10.1093/jee/toac168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Indexed: 06/16/2023]
Abstract
Boring pests such as Sitophilus zeamais (S. zeamais) are major threats in grain storage. However, how these pests affect the proteins of stored grains remains largely unknown. Here we aimed to investigate the effect of S. zeamais infestation on wheat protein during postharvest storage. In this study, wheat grain infested by S. zeamais was sampled at egg (4 d), larval (20 d), pupal (35 d), and adult stages (45 d), respectively. The protein's physicochemical and structural properties and the edible quality of whole wheat noodle were analyzed. The results showed that S. zeamais infestation significantly decreased the quality of wheat protein by altering its constitution and structure properties. Especially, compared with the control, the content of wet and dry gluten, gluten index, sodium dodecyl sulfate sedimentation volume, sulfhydryl groups, and disulfide bonds in insect-infested wheat decreased by 19.40, 5.42, 18.40, 8.12, 29.13, and 14.30%, respectively, during the storage period of one life cycle of S. zeamais. Additionally, the proportions of wheat protein fractions (albumin [1.16-fold], globulin [0.96-fold], gliadin [1.16-fold], and glutenin [0.95-fold]) and secondary structures (α-helix [0.91-fold], β-fold [0.96-fold], β-turn [1.06-fold], and random coil [1.05-fold]) of protein changed significantly, and the gluten network structure was broken in S. zeamais-infested wheat. Furthermore, the color of whole wheat noodle became darker, cooking loss rate increased, and textural properties (hardness, adhesiveness, springiness, cohesiveness, chewiness, and resilience) decreased as well. The results in the present study provided new insights for analyzing the quality deterioration mechanism and further quality improvement of boring pests-infested wheat grain.
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Affiliation(s)
- Qiong Wu
- Engineering Research Center of Grain Storage and Security of Ministry of Education, Henan Provincial Engineering Technology Research Center on Grain Post Harvest, School of Food and Strategic Reserves, Henan University of Technology, Lianhua Road 100, Zhengzhou High-Tech Development Zone, Zhengzhou, 450001, Henan, China
| | - Qisheng Tian
- Engineering Research Center of Grain Storage and Security of Ministry of Education, Henan Provincial Engineering Technology Research Center on Grain Post Harvest, School of Food and Strategic Reserves, Henan University of Technology, Lianhua Road 100, Zhengzhou High-Tech Development Zone, Zhengzhou, 450001, Henan, China
| | - Dongdong Zhang
- Engineering Research Center of Grain Storage and Security of Ministry of Education, Henan Provincial Engineering Technology Research Center on Grain Post Harvest, School of Food and Strategic Reserves, Henan University of Technology, Lianhua Road 100, Zhengzhou High-Tech Development Zone, Zhengzhou, 450001, Henan, China
| | - Yurong Zhang
- Engineering Research Center of Grain Storage and Security of Ministry of Education, Henan Provincial Engineering Technology Research Center on Grain Post Harvest, School of Food and Strategic Reserves, Henan University of Technology, Lianhua Road 100, Zhengzhou High-Tech Development Zone, Zhengzhou, 450001, Henan, China
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