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Shi D, Stone AK, Jafarian Z, Liu E, Xu C, Bhagwat A, Lu Y, Gao P, Polley B, Bhowmik P, Rajagopalan N, Tanaka T, Korber DR, Nickerson MT. Submerged fermentation of lentil protein isolate and its impact on protein functionality, nutrition, and volatile profiles. J Food Sci 2024. [PMID: 38767939 DOI: 10.1111/1750-3841.17111] [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: 12/06/2023] [Revised: 04/09/2024] [Accepted: 04/24/2024] [Indexed: 05/22/2024]
Abstract
Fermentation of pulses as a clean processing technique has been reported to have a favorable impact on the functional and nutritional quality of the starting materials. Compared to commonly fermented pulses such as peas and chickpeas, limited information is available on the effect of fermentation on lentils, especially when using a high protein isolate (>80% protein) as compared to seeds or flours. Therefore, in the present work, lentil protein isolate was used as a feedstock for submerged fermentation with Aspergillus niger, Aspergillus oryzae, or Lactobacillus plantarum. After 48 h, the samples showed increased protein content with enhanced solubility and oil-holding capacity. Controlled fermentation, as opposed to spontaneous fermentation, maintained the high foaming capacity; however, all fermented samples had lower foam and emulsion stabilizing properties and reduced water-holding capacity compared to the control. The fermented proteins were also less digestible, possibly due to an increase in phenolics and saponins. New volatile compounds were identified in fermented samples that show promise for improved sensory attributes. Significant differences were observed in specific quality attributes depending on the microbial strain used. Further research is required to better understand the fermentative metabolism of microbial communities when provided high-protein lentil ingredients as growth substrates. PRACTICAL APPLICATION: Fermented lentil protein isolate has promising flavor profiles that may improve its sensory properties for food application.
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Affiliation(s)
- Dai Shi
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Andrea K Stone
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Zahra Jafarian
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Enyu Liu
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Caishuang Xu
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Aarti Bhagwat
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Yuping Lu
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Peng Gao
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Brittany Polley
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Pankaj Bhowmik
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
| | - Nandhakishore Rajagopalan
- National Research Council Canada, Saskatoon, Saskatchewan, Canada
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Takuji Tanaka
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Darren R Korber
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Michael T Nickerson
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Drabo MS, Shumoy H, De Meulenaer B, Savadogo A, Raes K. Nutritional quality of the traditionally cooked Zamnè, a wild legume and a delicacy in Burkina Faso: assessment of the process effectiveness and the properties of cooking alkalis. Food Funct 2024; 15:1279-1293. [PMID: 38197166 DOI: 10.1039/d3fo02912c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Zamnè is a wild legume and a famine food that attracts interest for its health benefits and has become a delicacy in Burkina Faso. This study aimed to determine the nutritional quality of the traditionally cooked Zamnè, appreciate the effectiveness of the traditional cooking process, and compare the properties of the traditionally used cooking alkalis (i.e., potash or plant ash leachate and sodium bicarbonate). Yet, as shown, the traditional cooking of Zamnè is a very aggressive process that results in high disintegration of cell walls and membranes and leaching of most water-soluble constituents and nutrients (i.e., free amino acids, soluble nitrogen, sugars, soluble dietary fibers, and soluble phenolics). In addition, the extensive boiling and the cooking alkalis induced the sequestration of calcium, iron, magnesium, and zinc, significantly impairing their bioaccessibility. Despite the difference in the modus operandi of the cooking alkalis, there was no significant difference in the cooking outcomes. The traditionally cooked Zamnè presented high dietary protein (4.8 g), lipid (3.3 g), fiber (6.7-7.7 g), and metabolizable energy (63-65 kcal) contents (per 100 g fresh weight). Most antinutritional factors (i.e., non-protein nitrogen, tannins, and trypsin inhibitors) were eliminated. The proteins were relatively well preserved despite the aggressive alkaline processing. They demonstrated an appreciable digestibility (75%) and predicted PER (1.5) and a fairly balanced essential amino acid composition - which should completely meet the requirements for adults. The lipid content and composition were also well preserved and contained predominantly linoleic (C18:2n-6), oleic (C18:1c9), stearic (C18:0), and palmitic (C16:0) acids (33, 34, 10, and 15% total fatty acids, respectively). Overall, though extensive alkaline cooking seems a straightforward option to overcome the hard-to-cook problem of Zamnè, processing alternatives might be useful to reduce nutrient losses, improve the digestibility of the final product, and capture its full nutritional value.
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Affiliation(s)
- Moustapha Soungalo Drabo
- Research Unit VEG-i-TEC, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Sint-Martens-Latemlaan 2B, 8500 Kortrijk, Belgium.
- Laboratory of Applied Biochemistry and Immunology, Department of Biochemistry and Microbiology, University Joseph Ki-Zerbo, BP 7021, Ouagadougou 03, Burkina Faso
| | - Habtu Shumoy
- Research Unit VEG-i-TEC, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Sint-Martens-Latemlaan 2B, 8500 Kortrijk, Belgium.
| | - Bruno De Meulenaer
- Research Unit nutriFOODchem, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Aly Savadogo
- Laboratory of Applied Biochemistry and Immunology, Department of Biochemistry and Microbiology, University Joseph Ki-Zerbo, BP 7021, Ouagadougou 03, Burkina Faso
| | - Katleen Raes
- Research Unit VEG-i-TEC, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Sint-Martens-Latemlaan 2B, 8500 Kortrijk, Belgium.
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Duque-Estrada P, Hardiman K, Bøgebjerg Dam A, Dodge N, Aaslyng MD, Petersen IL. Protein blends and extrusion processing to improve the nutritional quality of plant proteins. Food Funct 2023; 14:7361-7374. [PMID: 37489569 DOI: 10.1039/d2fo03912e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Plant proteins have low protein nutritional quality due to their unbalanced indispensable amino acid (IAA) profile and the presence of antinutritional factors (ANFs) that limit protein digestibility. The blending of pulses with cereals/pseudocereals can ensure a complete protein source of IAA. In addition, extrusion may be an effective way to reduce ANFs and improve protein digestibility. Thereby, we aimed to improve the protein nutritional quality of plant protein ingredients by blending different protein sources and applying extrusion processing. Protein blends were prepared with pea, faba bean, quinoa, hemp, and/or oat concentrates or flours, and extrudates were prepared either rich in pulses (texturized vegetable proteins, TVPs) or rich in cereals (referred to here as Snacks). After extrusion, all samples showed a reduction in trypsin inhibitor activity (TIA) greater than 71%. Extrusion caused an increase in the total in vitro protein digestibility (IVPD) of TVPs, whereas no significant effect was shown for the snacks. According to the molecular weight distribution, TVPs presented protein aggregation. The results suggest that the positive effect of decreased TIA on IVPD is partially counteracted by the formation of aggregates during extrusion which restricts enzyme accessibility. After extrusion, all snacks retained a balanced amino acid score whereas a small loss of methionine + cysteine was observed in the TVPs, resulting in a small reduction in IAA content. Thus, extrusion has the potential to improve the nutritional quality of TVPs by reducing TIA and increasing protein digestibility.
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Affiliation(s)
- Patrícia Duque-Estrada
- Department of Food Science, Food Analytics and Biotechnology Section, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Kate Hardiman
- Department of Food Science, Food Analytics and Biotechnology Section, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Astrid Bøgebjerg Dam
- University College Absalon, Nutrition and Health, Centre for Nutrition, Rehabilitation and Midwifery, Sdr. Stationsvej 30, 4200 Slagelse, Denmark
| | - Nadia Dodge
- Department of Food Science, Food Analytics and Biotechnology Section, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
| | - Margit Dall Aaslyng
- University College Absalon, Nutrition and Health, Centre for Nutrition, Rehabilitation and Midwifery, Sdr. Stationsvej 30, 4200 Slagelse, Denmark
| | - Iben Lykke Petersen
- Department of Food Science, Food Analytics and Biotechnology Section, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg C, Denmark.
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Hoseini SM, Yousefi M, Afzali-Kordmahalleh A, Pagheh E, Taheri Mirghaed A. Effects of Dietary Lactic Acid Supplementation on the Activity of Digestive and Antioxidant Enzymes, Gene Expressions, and Bacterial Communities in the Intestine of Common Carp, Cyprinus carpio. Animals (Basel) 2023; 13:1934. [PMID: 37370444 DOI: 10.3390/ani13121934] [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: 05/12/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The present study investigated the effects of dietary lactic acid (LA) supplementation on the growth performance, intestinal digestive/antioxidant enzymes' activities, gene expression, and bacterial communities in common carp, Cyprinus carpio. Four diets were formulated to contain 0 g/kg LA (control), at 2.5 g/kg LA (2.5LAC), 5 g/kg LA (5LAC), and 10 g/kg LA (10LAC) and offered to the fish over a period of 56 days. The results showed that dietary 5 g/kg LA supplementation improved growth performance and feed efficiency in the fish. All LA treatments exhibited significant elevations in the intestinal trypsin and chymotrypsin activities, whereas the intestinal lipase, amylase, and alkaline phosphatase activities exhibited significant elevations in the 5LAC and 10LAC treatments. All LA treatments exhibited significant elevations in the intestinal heat shock protein 70, tumor necrosis factor-alpha, interleukin-1 beta, and defensin gene expressions, and the highest expression was observed in the 5LAC treatment. Additionally, dietary LA treatment significantly increased the lysozyme expression and Lactobacillus sp. population in the intestine of the fish, and the highest values were observed in the 5LAC and 10LAC treatments. Aeromonas sp. and Vibrio sp. populations decreased in the LA treatments, and the lowest Aeromonas sp. population was observed in the 10LAC treatment. The intestinal mucin2 and mucin5 expressions, and the hepatic reduced glutathione content, significantly increased, whereas hepatic glutathione peroxidase, glutathione reductase, and malondialdehyde significantly decreased in the 5LAC and 10LAC treatments. In conclusion, dietary 5 g/kg LA is recommended for common carp feeding to improve growth rate, antioxidant capacity, and intestinal health.
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Affiliation(s)
- Seyyed Morteza Hoseini
- Inland Waters Aquatics Resources Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Gorgan 4915677555, Iran
| | - Morteza Yousefi
- Department of Veterinary Medicine, RUDN University, 6 Miklukho-Maklaya St., 117198 Moscow, Russia
| | - Alireza Afzali-Kordmahalleh
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran 1417935840, Iran
| | - Esmaeil Pagheh
- Inland Waters Aquatics Resources Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Gorgan 4915677555, Iran
| | - Ali Taheri Mirghaed
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran 1417935840, Iran
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Associating Compositional, Nutritional and Techno-Functional Characteristics of Faba Bean ( Vicia faba L.) Protein Isolates and Their Production Side-Streams with Potential Food Applications. Foods 2023; 12:foods12050919. [PMID: 36900436 PMCID: PMC10001187 DOI: 10.3390/foods12050919] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/13/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023] Open
Abstract
Faba beans (Vicia faba L.) show exciting prospects as a sustainable source of protein and fibre, with the potential to transition to a more sustainable food production. This study reveals the compositional, nutritional and techno-functional characteristics of two protein isolates from faba beans (Vicia faba L.), a high-starch fraction and a high-fibre side-stream. During the analysis of those four ingredients, particular attention was paid to the isolates' protein profile and the side-streams' carbohydrate composition. The isoelectric precipitated protein isolate 1 showed a protein content of 72.64 ± 0.31% DM. It exhibited low solubility but superior digestibility and high foam stability. High foaming capacity and low protein digestibility were observed for protein isolate 2, with a protein content of 71.37 ± 0.93% DM. This fraction was highly soluble and consisted primarily of low molecular weight proteins. The high-starch fraction contained 83.87 ± 3.07% DM starch, of which about 66% was resistant starch. Over 65% of the high-fibre fraction was insoluble dietary fibre. The findings of this study provide a detailed understanding of different production fractions of faba beans, which is of great value for future product development.
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Liu K. Method development and optimization for measuring chymotrypsin and chymotrypsin inhibitor activities. J Food Sci 2022; 87:2018-2033. [PMID: 35451070 DOI: 10.1111/1750-3841.16141] [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: 12/23/2021] [Revised: 02/17/2022] [Accepted: 03/14/2022] [Indexed: 11/30/2022]
Abstract
Protease inhibitors of protein nature are rich in seeds of legume crops. There are two common types: Kunitz inhibitor, which mainly inhibits trypsin, and Bowman-Birk inhibitor, which inhibits both trypsin and chymotrypsin. Historically, trypsin inhibitor activity in legume products has been of primary interest for measurement. However, as plant proteins are increasingly used for food or feed in recent years, there is a growing interest in monitoring chymotrypsin inhibitor activity (CIA) in these products as well. Reported methods for CIA assay vary greatly and are incompletely described. No standardized or official method is available. The present study focused on developing a robust method for accurately measuring CIA, using N-benzoyl-L-tyrosine p-nitroanilide (BTpNA) as a substrate. Since BTpNA is not water soluble, a water-miscible organic solvent must be present. After investigating the effects of several factors, such as absorption spectra, organic solvent type and concentration, substrate and enzyme concentrations, inhibitor levels (which affected % chymotrypsin inhibition), the sequence of adding reagents, extractant and extraction time, and so forth, an optimized method for CIA measurement was finally developed. It features dimethylformamide as the organic solvent, the enzyme-last sequence, 5 ml total assay volume, and calculation of the inhibitor activity based on 40% chymotrypsin inhibition. The method can also be slightly modified for measuring chymotrypsin activity. The robust performance of the method was verified by measuring 11 assorted protein products, paving a way for standardization. PRACTICAL APPLICATION: With an increasing use of plant proteins, there is an urgent need to measure chymotrypsin inhibitor activity in various protein products with accuracy. After thoroughly investigating several factors, an optimized method for measuring chymotrypsin inhibitor activity in various protein products was developed. The proposed method is sensitive and robust, providing a basis for standardization. It can also be used for measuring chymotrypsin activity.
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Affiliation(s)
- Keshun Liu
- Grain Chemistry and Utilization Laboratory, National Small Grains and Potato Germplasm Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Aberdeen, Idaho, USA
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Liu K. Comparison of
ISO
14902:2001 with
AOCS
Ba 12a‐2020 for determining trypsin inhibitor activity in protein products. J AM OIL CHEM SOC 2021. [DOI: 10.1002/aocs.12542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Keshun Liu
- Grain Chemistry and Utilization Laboratory, National Small Grains and Potato Germplasm Research Unit United States Department of Agriculture, Agricultural Research Service (USDA‐ARS) Aberdeen Idaho USA
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Liu K. Trypsin Inhibitor Assay: Expressing, Calculating, and Standardizing Inhibitor Activity in Absolute Amounts of Trypsin Inhibited or Trypsin Inhibitors. J AM OIL CHEM SOC 2021. [DOI: 10.1002/aocs.12475] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Keshun Liu
- Grain Chemistry and Utilization Laboratory, National Small Grains and Potato Germplasm Research Unit United States Department of Agriculture, Agricultural Research Service (USDA‐ARS) 1691 South. 2700 West, Aberdeen ID 83210 USA
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