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Santos-Hernández M, Alfieri F, Gallo V, Miralles B, Masi P, Romano A, Ferranti P, Recio I. Compared digestibility of plant protein isolates by using the INFOGEST digestion protocol. Food Res Int 2020; 137:109708. [PMID: 33233282 DOI: 10.1016/j.foodres.2020.109708] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/21/2020] [Accepted: 09/06/2020] [Indexed: 01/05/2023]
Abstract
The use of ingredients based on plant protein isolates is being promoted due to sustainability and health reasons. However, it is necessary to explore the behaviour of plant protein isolates during gastrointestinal digestion including the profile of released free amino acids and the characterization of resistant domains to gastrointestinal digestion. The aim of the present study was to monitor protein degradation of four legume protein isolates: garden pea, grass pea, soybean and lentil, using the harmonized Infogest in vitro digestion protocol. In vitro digests were characterized regarding protein, peptide and free amino acid content. Soybean was the protein isolate with the highest percentage of insoluble nitrogen at the end of the digestion (12%), being this fraction rich in hydrophobic amino acids. Free amino acids were mainly released during the intestinal digestion, comprising 21-24% of the total nitrogen content, while the percentage of nitrogen corresponding to peptides ranged from 66 to 76%. Legume globulins were resistant to gastric digestion whereas they were hydrolysed into peptides and amino acids during the intestinal phase. However, the molecular weight (MW) distribution demonstrated that all intestinal digests, except those from soybean, contained peptides with MW > 4 kDa at the end of gastrointestinal digestion. The profile of free amino acids released during digestion supports legume protein isolates as an excellent source of essential amino acids to be used in protein-rich food products. Peptides released during digestion matched with previously reported epitopes from the same plant species or others, explaining the ability to induce allergic reactions and cross-linked reactivity.
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Affiliation(s)
- Marta Santos-Hernández
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM, CEI UAM+CSIC), Nicolás Cabrera, 9, 28049 Madrid, Spain
| | - Fabio Alfieri
- Department of Agricultural Sciences, Division of Food Science and Technology, University of Naples Federico II, Via Università 100, 80055 Portici, Naples, Italy
| | - Veronica Gallo
- Department of Agricultural Sciences, Division of Food Science and Technology, University of Naples Federico II, Via Università 100, 80055 Portici, Naples, Italy
| | - Beatriz Miralles
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM, CEI UAM+CSIC), Nicolás Cabrera, 9, 28049 Madrid, Spain
| | - Paolo Masi
- Department of Agricultural Sciences, Division of Food Science and Technology, University of Naples Federico II, Via Università 100, 80055 Portici, Naples, Italy
| | - Annalisa Romano
- Department of Agricultural Sciences, Division of Food Science and Technology, University of Naples Federico II, Via Università 100, 80055 Portici, Naples, Italy
| | - Pasquale Ferranti
- Department of Agricultural Sciences, Division of Food Science and Technology, University of Naples Federico II, Via Università 100, 80055 Portici, Naples, Italy
| | - Isidra Recio
- Instituto de Investigación en Ciencias de la Alimentación, CIAL (CSIC-UAM, CEI UAM+CSIC), Nicolás Cabrera, 9, 28049 Madrid, Spain.
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Pasqualone A, Costantini M, Coldea TE, Summo C. Use of Legumes in Extrusion Cooking: A Review. Foods 2020; 9:E958. [PMID: 32698316 PMCID: PMC7404795 DOI: 10.3390/foods9070958] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 12/23/2022] Open
Abstract
The traditional perception that legumes would not be suitable for extrusion cooking is now completely outdated. In recent years, an increasing number of studies have been conducted to assess the behavior of various types of legume flours in extrusion cooking, proving that legumes have excellent potential for the production of extruded ready-to-eat foods by partially or totally replacing cereals. This review identifies the optimal processing conditions for legume-based and legume-added extruded foods, which allow the improvement of the expansion ratio and give the extrudates the spongy and crisp structure expected by consumers. In particular, the effect of the individual processing parameters on the physical-chemical and nutritional properties of the final product is highlighted. The extrusion cooking process, indeed, has a positive effect on nutritional characteristics, because it induces important modifications on starch and proteins, enhancing their digestibility, and reduces the content of trypsin inhibitors, lectins, phytic acid, and tannins, typically present in legumes. Therefore, the extrusion of legume flours is a viable strategy to improve their nutritional features while reducing home preparation time, so as to increase the consumption of these sustainable crops.
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Affiliation(s)
- Antonella Pasqualone
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, Via Amendola, 165/a, I-70126 Bari, Italy; (M.C.); (C.S.)
| | - Michela Costantini
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, Via Amendola, 165/a, I-70126 Bari, Italy; (M.C.); (C.S.)
| | - Teodora Emilia Coldea
- Department of Food Engineering, University of Agricultural Sciences and Veterinary Medicine, Calea Manastur, 3-5, 400372 Cluj-Napoca, Romania;
| | - Carmine Summo
- Department of Soil, Plant and Food Science (DISSPA), University of Bari Aldo Moro, Via Amendola, 165/a, I-70126 Bari, Italy; (M.C.); (C.S.)
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Sá AGA, Moreno YMF, Carciofi BAM. Food processing for the improvement of plant proteins digestibility. Crit Rev Food Sci Nutr 2019; 60:3367-3386. [PMID: 31760758 DOI: 10.1080/10408398.2019.1688249] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Proteins are essential macronutrients for the human diet. They are the primary source of nitrogen and are fundamental for body structure and functions. The plant protein quality (PPQ) refers to the bioavailability, digestibility, and amino acid composition. The digestibility specifies the protein quantity absorbed by an organism relative to the consumed amount and depends on the protein structure, previous processing, and the presence of compounds limiting the digestion. The latter are so-called antinutritional factors (ANF), exemplified by phytates, tannins, trypsin inhibitors, and lectins. Animal proteins are known to have better digestibility than plant proteins due to the presence of ANF in plants. Thus, the inactivation of ANF throughout food processing may increase the PPQ. New food processing, aiming to increase the digestibility of plant proteins, and new sources of proteins are being studied for the animal protein substitution. Here, it is presented the impact of processing on the protein digestibility and reduction of ANF. Several techniques, such as cooking, autoclaving, germination, microwave, irradiation, spray- and freeze-drying, fermentation, and extrusion enhanced the PPQ. The emerging non-thermal technologies impact on protein functionalities but require studies on the protein digestibility. How to accurately determine and how to improve the protein digestibility of a plant source remains a scientific and technological challenge that may be addressed by novel or combining existing processing techniques, as well as by exploring protein-enriched by-products of the food industry.
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Affiliation(s)
- Amanda Gomes Almeida Sá
- Department of Chemical Engineering and Food Engineering, Graduate Program in Food Engineering, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Yara Maria Franco Moreno
- Department of Nutrition, Graduate Program in Nutrition, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Bruno Augusto Mattar Carciofi
- Department of Chemical Engineering and Food Engineering, Graduate Program in Food Engineering, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Ghumman A, Kaur A, Singh N, Singh B. Effect of feed moisture and extrusion temperature on protein digestibility and extrusion behaviour of lentil and horsegram. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.02.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kniskern MA, Johnston CS. Protein dietary reference intakes may be inadequate for vegetarians if low amounts of animal protein are consumed. Nutrition 2010; 27:727-30. [PMID: 21167687 DOI: 10.1016/j.nut.2010.08.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2010] [Revised: 08/23/2010] [Accepted: 08/23/2010] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The health benefits of vegetarian diets are well-recognized; however, long-term adherence to these diets may be associated with nutrient inadequacies, particularly vitamins B12 and D, calcium, iron, zinc, and protein. The dietary reference intakes (DRIs) expert panels recommended adjustments to the iron, zinc, and calcium DRIs for vegetarians to account for decreased bioavailability, but no adjustments were considered necessary for the protein DRI under the assumption that vegetarians consume about 50% of protein from animal (dairy/egg) sources. This study examined dietary protein sources in a convenience sample of 21 young adult vegetarian women who completed food logs on 4 consecutive days (3 weekdays and 1 weekend day). METHODS The daily contribution percentages of protein consumed from cereals, legumes, nuts/seeds, fruits/vegetables, and dairy/egg were computed, and the protein digestibility corrected amino acid score of the daily diets was calculated. RESULTS The calculated total dietary protein digestibility score for participants was 82 ± 1%, which differed significantly (P < 0.001) from the DRI reference score, 88%, and the 4-d average protein digestibility corrected amino acid score for the sample was 80 ± 2%, which also differed significantly (P < 0.001) from the DRI reference value, 100%. The analyses indicated that animal protein accounted for only 21% of dietary protein. CONCLUSION This research suggests that the protein DRI for vegetarians consuming less than the expected amounts of animal protein (45% to 50% of total protein) may need to be adjusted from 0.8 to about 1.0 g/kg to account for decreased protein bioavailability.
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Affiliation(s)
- Megan A Kniskern
- Nutrition Program, Healthy Lifestyles Research Center, Arizona State University, Mesa, Arizona, USA
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Ali MAM, El Tinay AH, Mallasy LO, Yagoub AEA. Supplementation of pearl millet flour with soybean protein: effect of cooking on in vitro protein digestibility and essential amino acids composition. Int J Food Sci Technol 2010. [DOI: 10.1111/j.1365-2621.2010.02187.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pulse proteins: Processing, characterization, functional properties and applications in food and feed. Food Res Int 2010. [DOI: 10.1016/j.foodres.2009.09.003] [Citation(s) in RCA: 714] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Khattak AB, Zeb A, Bibi N. Impact of germination time and type of illumination on carotenoidcontent, protein solubility and in vitro protein digestibility of chickpea(Cicer arietinum L.) sprouts. Food Chem 2008; 109:797-801. [DOI: 10.1016/j.foodchem.2008.01.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Revised: 01/17/2008] [Accepted: 01/23/2008] [Indexed: 10/22/2022]
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Khalil AW, Zeb A, Mahmood F, Tariq S, Khattak AB, Shah H. Comparison of sprout quality characteristics of desi and kabuli type chickpea cultivars (Cicer arietinum L.). Lebensm Wiss Technol 2007. [DOI: 10.1016/j.lwt.2006.05.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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GREWAL ANTU, JOOD SUDESH. EFFECT OF PROCESSING TREATMENTS ON NUTRITIONAL AND ANTINUTRITIONAL CONTENTS OF GREEN GRAM. J Food Biochem 2006. [DOI: 10.1111/j.1745-4514.2006.00080.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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