1
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Ben Hmad I, Mokni Ghribi A, Bouassida M, Ayadi W, Besbes S, Ellouz Chaabouni S, Gargouri A. Combined effects of α-amylase, xylanase, and cellulase coproduced by Stachybotrys microspora on dough properties and bread quality as a bread improver. Int J Biol Macromol 2024; 277:134391. [PMID: 39094867 DOI: 10.1016/j.ijbiomac.2024.134391] [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: 03/08/2024] [Revised: 07/11/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
This study aims to explore the feasibility of introducing, during the manufacture of bakery bread, an enzymatic cocktail coproduced by the fungus Stachybotrys microspora: α-amylases, xylanases and cellulases, using wheat bran as a nutrient source. Among the characteristics of the alveograph (dough tenacity "P" and dough extensibility "L"), the addition of a cocktail of enzymes at a concentration of 2 %, to weak wheat flour, has made it possible to significantly reduce its P/L ratio from 2.45 to 1.41. Furthermore, the use of enzyme cocktails at 2 %, 4 %, and 6 % concentrations increases the brown color of the bread crust. The great reduction in the rate of bread firmness, during storage over 5 days, was obtained in the presence of an enzyme cocktail in comparison with bread control (65.13 N for the control and 22.99 N, 23.24 N, and 18.24 N for bread enriched with enzyme cocktail at 2 %, 4 % and 6 % concentrations, respectively). In conclusion, the enzyme cocktail added can synergistically improve bread dough rheology and bread properties.
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Affiliation(s)
- Ines Ben Hmad
- Laboratory of Molecular Biotechnology of Eukaryotes, Center of Biotechnology of Sfax (CBS), University of Sfax, PO Box "1177" 3018, Sfax, Tunisia.
| | - Abir Mokni Ghribi
- Higher Institute of Applied Biology of Medenine, University of Gabes, Medenine, Tunisia; Laboratory of Analyze, Valorization and Foods Security, National School of Engineering, University of Sfax, PO Box 3038, Sfax, Tunisia
| | - Mouna Bouassida
- Laboratory of Environmental Bioprocesses, Center of Biotechnology of Sfax, University of Sfax, PO Box 1177, 3018 Sfax, Tunisia; Laboratory of Plant Improvement and Valorization of Agricultural Resources, National School of Engineering, Sfax University, P.O. Box 1173-3038, Tunisia
| | - Wajdi Ayadi
- Laboratory of Molecular Biotechnology of Eukaryotes, Center of Biotechnology of Sfax (CBS), University of Sfax, PO Box "1177" 3018, Sfax, Tunisia
| | - Souhail Besbes
- Laboratory of Analyze, Valorization and Foods Security, National School of Engineering, University of Sfax, PO Box 3038, Sfax, Tunisia
| | - Semia Ellouz Chaabouni
- Laboratory of Plant Improvement and Valorization of Agricultural Resources, National School of Engineering, Sfax University, P.O. Box 1173-3038, Tunisia
| | - Ali Gargouri
- Laboratory of Molecular Biotechnology of Eukaryotes, Center of Biotechnology of Sfax (CBS), University of Sfax, PO Box "1177" 3018, Sfax, Tunisia
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2
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Zhang W, Zhang G, Liang W, Tian J, Sun S, Zhang X, Lv X, Guo P, Qu A, Wu Z. Structure, Functional Properties, and Applications of Foxtail Millet Prolamin: A Review. Biomolecules 2024; 14:913. [PMID: 39199301 PMCID: PMC11352161 DOI: 10.3390/biom14080913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/25/2024] [Accepted: 07/25/2024] [Indexed: 09/01/2024] Open
Abstract
Foxtail millet prolamin, one of the major protein constituents of foxtail millet, has garnered attention due to its unique amino acid composition and function. Foxtail millet prolamin exhibits specific physicochemical and functional characteristics, such as solubility, surface hydrophobicity, emulsifying, and foaming properties. These characteristics have been exploited in the preparation and development of products, including plant-based alternative products, nutritional supplements, and gluten-free foods. Additionally, because of the favorable biocompatibility and biodegradability, foxtail millet prolamin is frequently used as a carrier for encapsulation and targeted delivery of bioactive substances. Moreover, studies have shown that foxtail millet prolamin is highly nutritious and displays various biological activities like antioxidant effects, anti-inflammatory properties, and anti-diabetic potential, making it a valuable ingredient in medicinal products and contributing to its potential role in therapeutic diets. This review summarizes the current knowledge of the amino acid composition and structural characteristics of foxtail millet prolamin, as well as the functional properties, biological activities, and applications in functional food formulation and drug delivery strategy. Challenges and future perspectives for the utilization of foxtail millet prolamin are also pointed out. This review aims to provide novel ideas and broad prospects for the effective use of foxtail millet prolamin.
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Affiliation(s)
- Wen Zhang
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
- Key Laboratory of Low Carbon Cold Chain for Agricultural Products, Ministry of Agriculture and Rural Affairs, Tianjin 300134, China
| | - Guijun Zhang
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Wenjing Liang
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Jiayi Tian
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Shuhao Sun
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Xinping Zhang
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Xinyi Lv
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Peibo Guo
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Ao Qu
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
| | - Zijian Wu
- Tianjin Key Laboratory of Food Science and Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (W.Z.); (G.Z.); (J.T.); (X.L.)
- Key Laboratory of Low Carbon Cold Chain for Agricultural Products, Ministry of Agriculture and Rural Affairs, Tianjin 300134, China
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3
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Liu X, Zhu X, Zhu Y, Wang C, Li H, Chen S. Effect of cellulase on dough structure and quality characteristics of tough biscuits enriched with potato whole flour. J Food Sci 2024; 89:3484-3493. [PMID: 38685867 DOI: 10.1111/1750-3841.17091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/25/2024] [Accepted: 04/09/2024] [Indexed: 05/02/2024]
Abstract
Potato whole flour is a promising way to improve the nutrition of tough biscuits, while its gluten-free characteristic was difficult to form acceptable texture properties. In this study, cellulase was used to degrade the cellulose in dough enriched with potato whole flour, so as to mitigate the interference of cellulose with the gluten network, resulting in forming the potato whole flour biscuit with great characteristics. Results indicated that cellulase within 0.2% led to the gradually reduced G' and G'' values of dough from 5.50×104 to 4.00×104 and 2.66×104 to 1.35×104, respectively. Cellulase at 0.2% resulted in the significantly increased tensile properties of the dough compared to the control. The incorporation of cellulase within 0.2% also led to the tightly ordered and intact network structure base on the results of SEM, disulfide bonds determination and FTIR. Those results indicated that cellulase was beneficial to improve the baking quality of dough, which was conductive to form tough biscuit with great characteristics. The hardness, crunchiness, crispness and specific volume analysis results confirmed that 0.2% cellulase resulted in the significantly decreased hardness by 45.25% and the significantly increased specific volume, crunchiness and crispness by 24.74%, 121.20% and 156.47%, respectively. Overall, cellulase ultimately improved the quality of the biscuits by improving the properties and structure of the dough. It was of great significance for the utilization of potato whole flour resources and the industrial production of its tough biscuits. PRACTICAL APPLICATION: The results showed that inclusion of cellulase led to the reduced hardness and increased crunchiness, crispness, and specific volume of potato whole flour tough biscuits. Cellulase could be used as a potential improver of tough biscuits. This study will provide guidance for practical uses of cellulase in improving potato whole flour dough and tough biscuit quality.
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Affiliation(s)
- Xinhua Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Xiao Zhu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Ying Zhu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Chenjie Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Hongjun Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Shanfeng Chen
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
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4
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Huang G, McClements DJ, He K, Lin Z, Zhang Z, Zhang R, Jin Z, Chen L. Recent advances in enzymatic modification techniques to improve the quality of flour-based fried foods. Crit Rev Food Sci Nutr 2024:1-16. [PMID: 38711404 DOI: 10.1080/10408398.2024.2349728] [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: 05/08/2024]
Abstract
Flour-based fried foods are among the most commonly consumed foods worldwide. However, the sensory attributes and nutritional value of fried foods are inconsistent and unstable. Therefore, the creation of fried foods with desirable sensory attributes and good nutritional value remains a major challenge for the development of the fried food industry. The quality of flour-based fried foods can sometimes be improved by physical methods and the addition of chemical modifiers. However, enzyme modification is widely accepted by consumers due to its unique advantages of specificity, mild processing conditions and high safety. Therefore, it is important to elucidate the effects of enzyme treatments on the sensory attributes (color, flavor and texture), oil absorption and digestibility of flour-based fried foods. This paper reviews recent research progress in utilizing enzyme modification to improve the quality of flour-based fried foods. This paper begins with the effects of common enzymes on the physicochemical properties (rheological property, retrogradation property and specific volume) of dough. Based on the analysis of the mechanism of formation of sensory attributes and nutritional properties, it focuses on the application of amylase, protease, transglutaminase, and lipase in the regulation of sensory attributes and nutritional properties of flour-based fried foods.
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Affiliation(s)
- Guifang Huang
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China
| | | | - Kuang He
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China
| | - Ziqiang Lin
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China
| | - Zipei Zhang
- Food Science Program, University of Missouri, Columbia, Missouri, USA
| | - Ruojie Zhang
- Food Science Program, University of Missouri, Columbia, Missouri, USA
| | - Zhengyu Jin
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China
| | - Long Chen
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, China
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5
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Vidhyalakshmi R, Prabhasankar P, Muthukumar SP, Prathima C, Meera MS. The impact of addition of pearl millet starch-germ complex in white bread on nutritional, textural, structural, and glycaemic response: Single blinded randomized controlled trial in healthy and pre-diabetic participants. Food Res Int 2024; 183:114186. [PMID: 38760125 DOI: 10.1016/j.foodres.2024.114186] [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: 10/25/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 05/19/2024]
Abstract
The rise of pre-diabetes at the global level has created a significant interest in developing low glycaemic index food products. The pearl millet is a cheaper source of starch and its germ contains significant amount of protein and fat. The complexing of pearl millet starch and germ by dry heat treatment (PMSGH) resulted an increase in the resistant starch content upto 45.09 % due to formation of amylose-glutelin-linoleic acid complex. The resulting pearl millet starch germ complex was incorporated into wheat bread at 20, 25, and 30 %. The PMSGH incorporated into bread at 30 % reduced the glycaemic index to 52.31. The PMSGH incorporated bread had significantly (p < 0.05)increased in the hardness with a reduction in springiness and cohesiveness. The structural attributes of the 30 % PMSGH incorporated bread revealed a significant (p < 0.05)increase in 1040/1020 cm-1 ratio and relative crystallinity. The consumption of functional bread incorporated with pearl millet starch germ complex reduced blood glucose levels and in vivo glycaemic index in healthy and pre-diabetic participants when compared to white bread. Hence, the study showed that the incorporation of pearl millet starch-germ complex into food products could be a potential new and healthier approach for improving dietary options in pre-diabetes care.
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Affiliation(s)
- R Vidhyalakshmi
- Department of Grain Science and Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pichan Prabhasankar
- Department of Flour Milling, Baking, and Confectionery Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - S P Muthukumar
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - C Prathima
- Department of Pharmacology, JSS Medical College, JSS Academy of Higher Education and Research, Mysore, Karnataka 570015, India
| | - M S Meera
- Department of Grain Science and Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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6
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Choi GH, Fugaban JII, Dioso CM, Bucheli JEV, Holzapfel WH, Todorov SD. Safety and Beneficial Properties of Bacteriocinogenic Lactococcus lactis and Pediococcus pentosaceus Strains, and Their Effect Versus Oral Cavity Related and Antibiotic-Resistant Pathogens. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10245-z. [PMID: 38564170 DOI: 10.1007/s12602-024-10245-z] [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] [Accepted: 03/11/2024] [Indexed: 04/04/2024]
Abstract
Pediococcus pentosaceus 732, Lactococcus lactis subsp. lactis 431, and Lactococcus lactis 808, bacteriocinogenic strains previously isolated from kimchi and banana, were investigated for their safety, beneficial properties and in vitro inhibition of pathogens such as Listeria monocytogenes ATCC 15313 and Staphylococcus simulans KACC 13241 and Staphylococcus auricularis KACC 13252. The results of performed physiological, biochemical, and biomolecular tests suggest that these strains can be deemed safe, as no virulence genes were detected in their DNA. Notably, only the gad gene associated with GABA production was identified in the DNA isolated of Lc. lactis 808 and Lc. lactis subsp. lactis 431 strains. All tested LAB strains exhibited γ-hemolysins and were non-producers of gelatinase and biogenic amines, which suggested their safety potential. Additionally, they were relatively susceptible to antibiotics except for streptomycin, tobramycin, and vancomycin for Pd. pentosaceus 732. The growth of Pd. pentosaceus 732, Lc. lactis subsp. lactis 431, and Lc. lactis 808 and their survival were minimally affected by up to 3% ox bile and low pH (except pH 2.0 and 4.0). Moreover, these LAB strains were not inhibited by various commercial extracts as well as most of the tested medications tested in the study. They did not produce proteolytic enzymes but exhibited production of D/L-lactic acid and β-galactosidase. They were also hydrophilic. Furthermore, their survival in artificial saliva, gastric simulation, and enteric passage was measured followed by a challenge test to assess their ability to inhibit the selected oral pathogens in an oral saliva model conditions.
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Affiliation(s)
- Gee Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Joanna Ivy Irorita Fugaban
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- National Food Institute, Technical University of Denmark, Building 202, Rm. 3.234, Kongens Lyngby, 2800, Kemitorvet, Denmark
| | - Clarizza May Dioso
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Jorge Enrique Vazquez Bucheli
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Wilhelm Heinrich Holzapfel
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
- CISAS - Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347, Viana Do Castelo, Portugal.
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Dios Sanz E, Sanmartino T, Campderrós ME, Rodriguez Furlán LT. Obtaining and evaluating of enzymatic extracts from hairless canary seed (CDC Maria) as gluten-free bread-improving agents. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2024; 61:539-550. [PMID: 38327861 PMCID: PMC10844167 DOI: 10.1007/s13197-023-05862-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/28/2023] [Accepted: 10/03/2023] [Indexed: 02/09/2024]
Abstract
In this study, enzyme extracts were obtained from hairless canary seeds (CDC Maria) and used as gluten-free bread improvers. The enzyme extraction was done with a specific protein buffer solution and subsequent centrifugation. The supernatant was called crude enzyme extract, a fraction of this extract was refrigerated (CE) and another fraction was lyophilized (CEL). The lyoprotective effect of corn fiber (CEL + CF), maltodextrin (CEL + M), and inulin (CEL + I) was evaluated. Each enzyme extract was added to a gluten-free bread at 0.25%, 0.5%, 0.75% and 1% (w/w). The quality of the gluten-free bread was determined by external and internal characteristically, physical and sensory analysis: analysis of the lamella thickness, the shape factor of pores, the final volume, the aeration percentage, the texture profile analysis, the pore size distribution and shelf-life time. The results showed that the formulation with CEL at 0.5% (w/w) significantly improved the gluten-free bread quality properties, generating an increase of the final volume and aeration percentage, a reduction of the firmness, chewiness and sample aging, and a finer and more uniform crumb structure when compared to a control sample (P < 0.001). This study revealed the potential of a food-improving additive obtained from a natural origin with a high-level production in Argentina.
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Affiliation(s)
- E. Dios Sanz
- Research Institute of Chemical Technology (INTEQUI)-CONICET, Faculty of Chemistry, Biochemistry and Pharmacy (UNSL), Ejército de los Andes 950, San Luis, Argentina
| | - T. Sanmartino
- Research Institute of Chemical Technology (INTEQUI)-CONICET, Faculty of Chemistry, Biochemistry and Pharmacy (UNSL), Ejército de los Andes 950, San Luis, Argentina
| | - M. E. Campderrós
- Research Institute of Chemical Technology (INTEQUI)-CONICET, Faculty of Chemistry, Biochemistry and Pharmacy (UNSL), Ejército de los Andes 950, San Luis, Argentina
| | - L. T. Rodriguez Furlán
- Research Institute of Chemical Technology (INTEQUI)-CONICET, Faculty of Chemistry, Biochemistry and Pharmacy (UNSL), Ejército de los Andes 950, San Luis, Argentina
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8
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Abdollahzadeh A, Vazifedoost M, Didar Z, Haddadkhodaprast MH, Armin M. Comparison of the effect of hydroxyl propyl methyl cellulose, pectin, and concentrated raisin juice on gluten-free bread based on rice and foxtail millet flour. Food Sci Nutr 2024; 12:439-449. [PMID: 38268869 PMCID: PMC10804086 DOI: 10.1002/fsn3.3741] [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: 05/23/2023] [Revised: 08/08/2023] [Accepted: 09/25/2023] [Indexed: 01/26/2024] Open
Abstract
The nutritional and technological challenges of gluten-free (GF) bread have increased the need for its modification due to the growing demand for this product, especially from celiac patients. Therefore, the present study aims at evaluating the influence of hydroxyl propyl methyl cellulose (HPMC) at 1% and 2% levels, pectin at 1.5% and 2.5% levels, and concentrated raisin juice (CRJ) at 3% and 4% levels on the dough rheological properties and quality of GF bread based on rice and millet flour. The GF bread prepared with HPMC and incorporating CRJ had higher water absorption, dough development time, and dough stability. In addition, the firmness of GF bread during 24-72 h after baking in the presence of 1% HPMC with 3% and 4% CRJ followed by 2.5% pectin incorporating 3% and 4% CRJ showed a significant decrease compared to the control sample. Further, the color index of GF bread was improved with the addition of HPMC and pectin and the L* index decreased in all GF breads with CRJ. The highest volume was occupied by bread containing 1% HPMC. The results demonstrated that GF bread could be produced from a mixture of rice and millet flour and its technological quality was improved by using 1% HPMC and 3% CRJ. Therefore, it has the necessary potential for high-scale production and consumption among members of the society.
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Affiliation(s)
| | - Mohsen Vazifedoost
- Department of Food Science and Technology, Neyshabur BranchIslamic Azad UniversityNeyshaburIran
| | - Zohreh Didar
- Department of Food Science and Technology, Neyshabur BranchIslamic Azad UniversityNeyshaburIran
| | | | - Mohammad Armin
- Department of Agronomy and plant Breeding, Sabzevar BranchIslamic Azad UniversitySabzevarIran
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9
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Liu W, Brennan M, Tu D, Brennan C. Influence of α-amylase, xylanase and cellulase on the rheological properties of bread dough enriched with oat bran. Sci Rep 2023; 13:4534. [PMID: 36941348 PMCID: PMC10027849 DOI: 10.1038/s41598-023-31591-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/14/2023] [Indexed: 03/23/2023] Open
Abstract
A better understanding of dough rheology during processing is crucial in the bakery industry, since quality attributes of the final product are influenced by those properties. In this study, we investigated the effects of xylanase, α-amylase and cellulase on the rheological properties of bread dough enriched in oat bran. A DoughLAB was used to measure the mixing characteristics of dough. According to the results, adding a single enzyme did not significantly affect the water absorption, development time, or stability of oat bran dough. In contrast, when blended enzymes were used at high concentrations (10, 120, and 60 ppm), the water absorption, development time, and stability of the oat bran dough were significantly reduced compared to using the single enzyme (62.1%, 7.1 and 6.6 min). It was found that combining α-amylase, xylanase and cellulase resulted in better extensibility and stickiness (16.5 mm and 60.8 g) of oat bran dough than using these enzymes individually. As a result, α-amylase, xylanase and cellulase complemented each other in determining the rheology of bread dough.
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Affiliation(s)
- Wenjun Liu
- School of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Margaret Brennan
- Department of Wine, Food and Molecular Biosciences. Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, Christchurch, 7647, New Zealand
| | - Dawei Tu
- School of Environment and Resources, Chongqing Technology and Business University, Chongqing, China.
| | - Charles Brennan
- Department of Wine, Food and Molecular Biosciences. Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, Christchurch, 7647, New Zealand
- School of Science, RMIT, Melbourne, VIC, 3000, Australia
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10
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Novotni D, Nanjara L, Štrkalj L, Drakula S, Čukelj Mustač N, Voučko B, Ćurić D. Influence of Particle Size and Xylanase Pretreatment of Proso Millet Bran on Physical, Sensory and Nutritive Features of Gluten-Free Bread. Food Technol Biotechnol 2023; 61:73-84. [PMID: 37200793 PMCID: PMC10187571 DOI: 10.17113/ftb.61.01.23.7776] [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: 04/26/2022] [Accepted: 11/02/2022] [Indexed: 05/20/2023] Open
Abstract
Research background Millet bran is a by-product rich in dietary fibre, micronutrients and bioactive compounds which are often deficient in a gluten-free diet. Previously, cryogenic grinding has been shown to improve the functionality of bran to some extent, although it offered limited benefits for bread making. This study aims to investigate the effects of adding proso millet bran depending on its particle size and xylanase pretreatment on the physicochemical, sensory and nutritional properties of gluten-free pan bread. Experimental approach Coarse bran (d50=223 μm) was ground to medium size (d50=157 μm) using an ultracentrifugal mill or to superfine particles (d50=8 μm) using a cryomill. Millet bran presoaked in water (for 16 h at 55 °C) with or without the addition of fungal xylanase (10 U/g) replaced 10% of the rice flour in the control bread. Bread specific volume, crumb texture, colour and viscosity were measured instrumentally. Along with proximate composition, the content of soluble and insoluble fibre, total phenolic compounds (TPC) and phenolic acids as well as total and bioaccessible minerals of bread were assessed. Sensory analysis of the bread samples included a descriptive, hedonic and ranking test. Results and conclusions Dietary fibre content (7.3-8.6 g/100 g) and TPC (42-57 mg/100 g) on dry mass basis of the bread loaves depended on bran particle size and xylanase pretreatment. The effect of xylanase pretreatment was most evident in the loaves with medium bran size in terms of higher content of fibre soluble in ethanol (45%) and free ferulic acid content (5%), improved bread volume (6%), crumb softness (16%) and elasticity (7%), but lower chewiness (15%) and viscosity (20-32%). Bread bitterness and dark colour were increased after adding medium-sized bran but its bitter aftertaste, crust crookedness, crumb hardness and graininess were reduced with xylanase pretreatment. Although bran addition impaired protein digestibility, it enriched the bread with iron (341%), magnesium (74%), copper (56%) and zinc (7.5%). Xylanase pretreatment of the bran resulted in the improved bioaccessibility of zinc and copper of the enriched bread compared to the control and bread without xylanase. Novelty and scientific contribution Application of xylanase to medium sized bran obtained by ultracentrifugal grinding was more successful than its application to superfine bran obtained by the multistage cryogrinding as it resulted in more soluble fibre in gluten-free bread. Moreover, xylanase was proven beneficial in maintaining desirable bread sensory properties and mineral bioaccessibility.
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Affiliation(s)
- Dubravka Novotni
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Ljiljana Nanjara
- University of Applied Sciences ‘Marko Marulić’, Petra Krešimira IV 30, 22300 Knin, Croatia
| | - Lucija Štrkalj
- Division of Food Sciences, Nutrition and Dietetics, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK
| | - Saša Drakula
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Nikolina Čukelj Mustač
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Bojana Voučko
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Duška Ćurić
- University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, 10000 Zagreb, Croatia
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11
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Doddabematti Prakash S, Nkurikiye E, Rajpurohit B, Li Y, Siliveru K. Significance of different milling methods on white proso millet flour physicochemical, rheological, and baking properties. J Texture Stud 2023; 54:92-104. [PMID: 36101011 DOI: 10.1111/jtxs.12717] [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: 06/23/2022] [Revised: 08/17/2022] [Accepted: 09/03/2022] [Indexed: 11/29/2022]
Abstract
Proso millet is a nutritious, sustainable, and gluten free food which is currently underutilized. They can be incorporated into the grain industry and provide much needed healthy alternatives. Efficient grinding method should be adopted for easy incorporation. This study aimed to investigate the effect of three different methods of grinding namely, roller milling (RM), pin milling (PM), and hammer milling (HM) on proso millet flour rheology and baking properties for food application. The milling flow sheet was developed toward the production of the quality whole grain flour. The particle size distribution of all the flours showed bi-modal distribution except for the RM flour. The PM produced the flour with the finest particles with geometric mean diameter of 82 μm. The study also revealed that starch damage in the PM flour (4.64%) was higher than RM (2.46%) and HM flour (2.51%). The nutritional composition was not significantly affected by different grinding methods. Pasting properties of the flour were also affected by the grinding method applied. Rapid Visco Analysis profile showed pin mill flour to have a higher peak viscosity (PV) (2,295 cP) compared to HM (2,065 cP) and RM flour (2,130 cP). Finally, this study demonstrated that the production of bread from proso millet flour with desirable quality and texture is possible. The grinding method did not affect the specific volume of bread loaves and C-cell characteristics. The specific volume of the breads ranged from 2.40 to 2.52 cm3 /g. This study will help in promoting and producing value-added proso millet food products with enhanced nutritional quality.
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Affiliation(s)
| | - Eric Nkurikiye
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Bipin Rajpurohit
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Yonghui Li
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Kaliramesh Siliveru
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, USA
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12
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Liu W, Brennan M, Brennan C, You L, Tu D. Effect of Enyzmes on the Quality and Predicting Glycaemic Response of Chinese Steamed Bread. Foods 2023; 12:foods12020273. [PMID: 36673363 PMCID: PMC9857493 DOI: 10.3390/foods12020273] [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: 12/10/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
The present study investigates the individual and interactional effects of α-amylase (6 and 10 ppm), xylanase (70 and 120 ppm) and cellulase (35 and 60 ppm) on the physicochemical characteristics and nutritional quality of Chinese steamed bread (CSB) incorporated with 15% oat bran. As a result, the single enzyme can significantly improve the specific volume and texture of CSB. Compared to the single enzyme, the combined enzymes improved the specific volume of CSB up to the highest value (2.51 mL/g) and decreased the hardness to the minimum value (233.61 g) when the concentration was 6, 70 and 35 ppm. With respect to chemical and nutritional properties, the addition of single enzyme had no great changes, while the combined enzymes (6, 70 and 35 ppm) significantly (p < 0.05) decreased the total starch from 37.52 to 34.11% and hence increased the area under the reducing sugar release curve during 2 h in vitro digestion (AUC) from 344.61 to 371.26. Consequently, enzymes combination can significantly improve the quality of oat bran CSB whereas reduce the nutritional value of oat bran CSB.
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Affiliation(s)
- Wenjun Liu
- School of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Margaret Brennan
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Charles Brennan
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
- School of Science, RMIT University, Melbourne 3000, Australia
| | - Linfeng You
- School of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
- Correspondence:
| | - Dawei Tu
- School of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
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13
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Application of zein in gluten-free foods: A comprehensive review. Food Res Int 2022; 160:111722. [DOI: 10.1016/j.foodres.2022.111722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/04/2022] [Accepted: 07/19/2022] [Indexed: 01/11/2023]
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14
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Tamilselvan T, Sharma S, Thomas PE, Goyal K, Prabhasankar P. Role of hydrocolloids in improving the rheology, quality characteristics and microstructure of gluten free proso millet bread. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16058] [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)
- T. Tamilselvan
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Flour milling Baking and Confectionery Technology Department, CSIR‐Central Food Technological Research Institute Mysuru 570020 Karnataka India
| | - Shivani Sharma
- Flour milling Baking and Confectionery Technology Department, CSIR‐Central Food Technological Research Institute Mysuru 570020 Karnataka India
| | - Pinchu Elizabath Thomas
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Flour milling Baking and Confectionery Technology Department, CSIR‐Central Food Technological Research Institute Mysuru 570020 Karnataka India
| | - Kanchan Goyal
- Flour milling Baking and Confectionery Technology Department, CSIR‐Central Food Technological Research Institute Mysuru 570020 Karnataka India
| | - Pichan Prabhasankar
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Flour milling Baking and Confectionery Technology Department, CSIR‐Central Food Technological Research Institute Mysuru 570020 Karnataka India
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15
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Sharanagat VS, Singh L, Nema PK. Approaches for development of functional and low gluten bread from sorghum: A review. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vijay Singh Sharanagat
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management (NIFTEM) Kundli, Sonepat Haryana India
| | - Lochan Singh
- Contract research organization National Institute of Food Technology Entrepreneurship and Management (NIFTEM) Kundli, Sonepat Haryana India
| | - Prabhat K. Nema
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management (NIFTEM) Kundli, Sonepat Haryana India
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16
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The Role of Amaranth, Quinoa, and Millets for the Development of Healthy, Sustainable Food Products-A Concise Review. Foods 2022; 11:foods11162442. [PMID: 36010444 PMCID: PMC9407507 DOI: 10.3390/foods11162442] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 01/08/2023] Open
Abstract
The selection of sustainable crops adaptable to the rapidly changing environment, which also cater to the dietary needs of the growing population, is a primary challenge in meeting food security. Grains from ancient crops such as amaranth, quinoa, and millets are positioned to address this challenge and hence have gained dietary predominance among cereals and pseudocereals due to their nutritional value and energy efficiency. From a nutritional perspective, they are recognized for their complete protein, phenolic compounds and flavonoids, prebiotic fibers, and essential micronutrients, including minerals and vitamins. Bioactive peptides from their proteins have shown antihypertensive, antidiabetic, antioxidant, and anticancer properties. The nutritional diversity of these grains makes them a preferred choice over traditional cereals for developing healthy, sustainable food products such as plant-based dairy, vegan meats, and gluten-free products. With growing consumer awareness about sustainability and health, the categories mentioned above are transitioning from ‘emerging’ to ‘mainstream’; however, there is still a significant need to include such healthy grains to fulfill the nutritional gap. This review article emphasizes the health benefits of amaranth, quinoa, and millet grains and discusses the recent research progress in understanding their application in new sustainable food categories. The challenges associated with their incorporation into novel foods and future research directions are also provided.
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17
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Sharma R, Bhandari M, Sharma S, Bhardwaj R. Compositional, structural and functional characteristics of millets as modified by bioprocessing techniques: a review. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16885] [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)
- Rajan Sharma
- Department of Food Science and Technology Punjab Agricultural University Ludhiana India
| | - Manisha Bhandari
- Department of Food Science and Technology Punjab Agricultural University Ludhiana India
| | - Savita Sharma
- Department of Food Science and Technology Punjab Agricultural University Ludhiana India
| | - Ruchika Bhardwaj
- Department of Plant Breeding and Genetics Punjab Agricultural University Ludhiana India
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18
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Matas A, Igual M, García-Segovia P, Martínez-Monzó J. Application of 3D Printing in the Design of Functional Gluten-Free Dough. Foods 2022; 11:foods11111555. [PMID: 35681306 PMCID: PMC9180896 DOI: 10.3390/foods11111555] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
The design of functional foods through 3D printing is proposed here as one of the most appropriate technologies to provide closer food personalization for the population. However, it is essential to study the properties of the biomaterials intended to be printed. This work will evaluate the incorporation of rosehip as a functional ingredient in a gluten-free dough. Three types of dough (control, rosehip, and encapsulated rosehip) were printed in a rectangular figure of dimensions 7 cm long, 2 cm wide, and 1, 2, and 3 cm high. Changes in printed figures before and after baking were evaluated by image analysis. Physicochemical properties, total phenols (TP), antioxidant capacity (AC), and total carotenoids (TC) were determined both in the pre-printed doughs and in the printed and baked samples. The bread enriched with rosehips presented more orange colors in dough and crumbs. They were also more acidic than control, probably due to the ascorbic acid content of rosehip. The addition of rosehip generally makes the product more resistant to breakage, which could be due to the fiber content of the rosehip. It was observed that the incorporation of rosehip notably improved the functional properties of the bread.
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19
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Tomar M, Bhardwaj R, Verma R, Singh SP, Dahuja A, Krishnan V, Kansal R, Yadav VK, Praveen S, Sachdev A. Interactome of millet-based food matrices: A review. Food Chem 2022; 385:132636. [PMID: 35339804 DOI: 10.1016/j.foodchem.2022.132636] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 12/28/2022]
Abstract
Millets are recently being recognized as emerging food ingredients with multifaceted applications. Whole grain flours made from millets, exhibit diverse chemical compositions, starch digestibility and physicochemical properties. A food matrix can be viewed as a section of food microstructure, commonly coinciding with a physical spatial domain that interacts or imparts specific functionalities to a particular food constituent. The complex millet-based food matrices can help individuals to attain nutritional benefits due to the intricate and unique digestive properties of these foods. This review helps to fundamentally understand the binary and ternary interactions of millet-based foods. Nutritional bioavailability and bioaccessibility are also discussed based on additive, synergistic, masking, the antagonistic or neutralizing effect of different food matrix components on each other and the surrounding medium. The molecular basis of these interactions and their effect on important functional attributes like starch retrogradation, gelling, pasting, water, and oil holding capacity is also discussed.
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Affiliation(s)
- Maharishi Tomar
- Division of Seed Technology, ICAR - Indian Grassland and Fodder Research Institute, Jhansi 284003, India; Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India
| | - Rakesh Bhardwaj
- Germplasm Evaluation Division, National Bureau of Plant Genetic Resources, New Delhi 110012, India.
| | - Reetu Verma
- Division of Crop Improvement, ICAR -Indian Grassland and Fodder Research Institute, Jhansi 284003, India
| | - Sumer Pal Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 284003, India
| | - Anil Dahuja
- Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India
| | - Veda Krishnan
- Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India
| | - Rekha Kansal
- ICAR-National Institute for Plant Biotechnology, Pusa, New Delhi 110012, India
| | - Vijay Kumar Yadav
- Division of Seed Technology, ICAR - Indian Grassland and Fodder Research Institute, Jhansi 284003, India
| | - Shelly Praveen
- Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Archana Sachdev
- Division of Biochemistry, ICAR - Indian Agricultural Research Institute, New Delhi 110012, India.
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20
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Potential of fungal thermostable alpha amylase enzyme isolated from Hot springs of Central Anatolia (Turkey) in wheat bread quality. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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21
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Selection of Bacteriocinogenic Bacillus spp. from Traditional Fermented Korean Food Products with Additional Beneficial Properties. FERMENTATION 2021. [DOI: 10.3390/fermentation7040271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Two Bacillus spp. isolated from kimchi, Bacillus tequilensis ST816CD and Bacillus subtilis ST830CD, were characterized for their antimicrobial properties and safety. The proteinaceous nature of their inhibitory metabolites was confirmed after exposure to proteolytic enzymes, resulting in partial loss of the antimicrobial effect. This indicated that different non-proteinaceous antimicrobial substances may also be produced by these strains. This hypothesis was later confirmed when genes associated with the production of surfactants were detected in their DNA. The expressed antimicrobial metabolites were not affected by treatment at different temperatures and pH levels, including exposure to selected chemicals. Their strong adherence to susceptible pathogens was not significantly affected by different temperatures, chemicals, or pH values. Both Bacillus strains showed inhibitory activity against clinical and food-associated pathogens, including Listeria monocytogenes ATCC 15313, and some Staphylococcus species. Several genes associated with the production of antimicrobial metabolites were detected, but key virulence and beneficial genes were not present in these strains. Even though only B. tequilensis ST816CD displayed γ-hemolysin production, both selected strains were found to produce gelatinase and biogenic amines, which are considered as either potential virulence- or health-related factors. Moreover, the strains were susceptible to a variety of antibiotics except for the penicillin G [1 IU/disc] resistance of B. tequilensis ST816CD. Both strains showed proteolytic activity. Additionally, both strains showed low hydrophobicity based on bacterial adherence measured by hydrocarbons (n-hexadecane).
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22
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Biochemical characterization of a GH10 xylanase from the anaerobic rumen fungus Anaeromyces robustus and application in bread making. 3 Biotech 2021; 11:406. [PMID: 34471589 DOI: 10.1007/s13205-021-02956-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/04/2021] [Indexed: 01/03/2023] Open
Abstract
Anaeromyces robustus is an anaerobic rumen microorganism which can produce plant cell wall degrading enzymes. In this study, a new GH10 xylanase gene xylAr10 from A. robustus was identified, cloned and expressed in Pichia pastoris GS115. The recombinant protein ArXyn10 was characterized after being purified by Ni-NTA. The optimal pH and temperature of ArXyn10 was determined at 5.5 and 40 °C, respectively. ArXyn10 was stable at the pH range of 4.0-8.0, and could maintain high stability from 35 to 45 °C. The hydrolysis products released from beechwood xylan by ArXyn10 showed chromatographic mobility similar to xylobiose and xylotriose according to thin-layer chromatography analysis. It was shown that the addition of 7.5 mg of ArXyn10 in 100 g high-gluten wheat flour during bread making could increase the reducing sugar content by 10.80%, indicating that xylo-oligosaccharides were produced. With the addition of ArXyn10, the hardness and chewiness of the bread decreased and the quality was improved. The new discovered xylanase ArXyn10 have potential application prospect in bread making.
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23
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Dough Rheological Properties, Microstructure and Bread Quality of Wheat-Germinated Bean Composite Flour. Foods 2021; 10:foods10071542. [PMID: 34359411 PMCID: PMC8304690 DOI: 10.3390/foods10071542] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 01/31/2023] Open
Abstract
Germinated bean flour (GBF) was obtained and incorporated in different levels (5%, 10%, 15%, 20% and 25%) into dough and bread made from refined wheat flour. The incorporation of GBF into wheat flour led to a decrease of the water absorption value, dough consistency, baking strength, extensibility and improved tolerance for mixing, total gas production and α-amylase activity. Tan δ increased in a frequency-dependent manner for the samples with a GBF addition, whereas the G’ and G” decreased with the increased value of the temperature. According to the microscopic structures of the dough samples, a decrease of the starch area may be clearly seen for the samples with high levels of GBF addition in wheat flour. The bread evaluation showed that the specific volume, porosity and elasticity increased, whereas the firmness, gumminess and chewiness decreased up to a level of 15% GBF addition in wheat flour. The color parameters L*, a* and b* of the bread samples indicated a darkening effect of GBF on the crumb and crust. From the sensory point of view, the bread up to a 15% GBF addition was well-appreciated by the panelists. According to the data obtained, GBF could be recommended for use as an improver, especially up to a level of 15% addition in the bread-making industry.
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Krupa-Kozak U, Drabińska N, Bączek N, Šimková K, Starowicz M, Jeliński T. Application of Broccoli Leaf Powder in Gluten-Free Bread: An Innovative Approach to Improve Its Bioactive Potential and Technological Quality. Foods 2021; 10:819. [PMID: 33918917 PMCID: PMC8069453 DOI: 10.3390/foods10040819] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/27/2021] [Accepted: 04/06/2021] [Indexed: 12/22/2022] Open
Abstract
In comparison to conventional bread, gluten-free bread (GF) shows many post-baking defects and a lower nutritional and functional value. Although broccoli leaves are perceived as waste products, they are characterised by a high content of nutrients and bioactive compounds. The present study evaluated the nutritional value, technological quality, antioxidant properties, and inhibitory activity against the formation of advanced glycation end-products (AGEs) of GF enriched with broccoli leaf powder (BLP). Compared to the control, gluten-free bread with BLP (GFB) was characterised by a significantly (p < 0.05) higher content of nutrients (proteins and minerals), as well as improved specific volume and bake loss. However, what needs to be emphasised is that BLP significantly (p < 0.05) improved the antioxidant potential and anti-AGE activity of GFB. The obtained results indicate that BLP can be successfully used as a component of gluten-free baked products. In conclusion, the newly developed GFB with improved technological and functional properties is an added-value bakery product that could provide health benefits to subjects on a gluten-free diet.
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Affiliation(s)
- Urszula Krupa-Kozak
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 Str., 10-748 Olsztyn, Poland; (N.D.); (N.B.); (K.Š.); (M.S.); (T.J.)
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Characteristics of the Proteolytic Enzymes Produced by Lactic Acid Bacteria. Molecules 2021; 26:molecules26071858. [PMID: 33806095 PMCID: PMC8037685 DOI: 10.3390/molecules26071858] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/17/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022] Open
Abstract
Over the past several decades, we have observed a very rapid development in the biotechnological use of lactic acid bacteria (LAB) in various branches of the food industry. All such areas of activity of these bacteria are very important and promise enormous economic and industrial successes. LAB are a numerous group of microorganisms that have the ability to ferment sugars into lactic acid and to produce proteolytic enzymes. LAB proteolytic enzymes play an important role in supplying cells with the nitrogen compounds necessary for their growth. Their nutritional requirements in this regard are very high. Lactic acid bacteria require many free amino acids to grow. The available amount of such compounds in the natural environment is usually small, hence the main function of these enzymes is the hydrolysis of proteins to components absorbed by bacterial cells. Enzymes are synthesized inside bacterial cells and are mostly secreted outside the cell. This type of proteinase remains linked to the cell wall structure by covalent bonds. Thanks to advances in enzymology, it is possible to obtain and design new enzymes and their preparations that can be widely used in various biotechnological processes. This article characterizes the proteolytic activity, describes LAB nitrogen metabolism and details the characteristics of the peptide transport system. Potential applications of proteolytic enzymes in many industries are also presented, including the food industry.
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