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Muñoz-Pina S, Khvostenko K, García-Hernández J, Heredia A, Andrés A. In vitro digestibility and angiotensin converting enzyme (ACE) inhibitory activity of solid-state fermented fava beans (Vicia faba L.). Food Chem 2024; 455:139867. [PMID: 38823127 DOI: 10.1016/j.foodchem.2024.139867] [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: 03/22/2024] [Revised: 05/15/2024] [Accepted: 05/26/2024] [Indexed: 06/03/2024]
Abstract
Reducing the content of quickly absorbed carbohydrates and saturated fats in snack formulations while increasing the consumption of high-quality proteins are effective strategies to prevent obesity in childhood. Thus, the nutritional value, digestibility, and functionality of fava beans (Vicia faba L.) fermented with Pleurotus ostreatus were examined as potential ingredients for food design. Solid-state fermentation enhanced the protein content by 16% with a rise in essential (25%) and non-essential (15%) amino acids while decreasing total carbohydrate content and tannin levels. Moreover, fermentation modified the amino acid profile released during digestion, increasing amino acids such as valine, isoleucine, and threonine, which are vital for health and development in childhood. Furthermore, the bioaccessible fraction of the fermented bean showed a 60% of ACE inhibition and improved magnesium bioaccessibility. Consequently, fava beans fermented with Pleurotus ostreatus emerged as a new ingredient in the development of new protein-rich snacks tailored for children and adolescents.
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Affiliation(s)
- Sara Muñoz-Pina
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV. Universitat Politècnica de València. Camino de Vera s/n, 46022, Valencia, Spain..
| | - Kateryna Khvostenko
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV. Universitat Politècnica de València. Camino de Vera s/n, 46022, Valencia, Spain
| | - Jorge García-Hernández
- Centro Avanzado de Microbiología de Alimentos (CAMA), Universitat Politècnica de València. Camino de Vera s/n, 46022, Valencia, Spain
| | - Ana Heredia
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV. Universitat Politècnica de València. Camino de Vera s/n, 46022, Valencia, Spain
| | - Ana Andrés
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV. Universitat Politècnica de València. Camino de Vera s/n, 46022, Valencia, Spain
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Khvostenko K, Muñoz-Pina S, García-Hernández J, Heredia A, Andrés A. Impact of Fava Bean ( Vicia faba) Processing on Quality Characteristics and Digestibility of a Protein-Rich Snack. Foods 2024; 13:2372. [PMID: 39123563 PMCID: PMC11311399 DOI: 10.3390/foods13152372] [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: 06/14/2024] [Revised: 07/22/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
The impact of fava bean processing methods (soaking, autoclaving, fermentation) on a legume-based bars' quality, protein characteristics, and digestibility was shown. The antioxidant and the angiotensin-converting enzyme-inhibitory capacity before and after in vitro digestion were investigated to reveal the potential advantages of fava bean usage for snacks. All bars have demonstrated high protein content, varying from 22.1 to 25.1 g/100 g DB. Based on the fermented fava beans of Pleurotus ostreatus, the samples were characterized by a higher concentration of essential amino acids by 8.6% and a reduction of tannins by 18.5% compared with bars based on soaked fava beans. Sensory evaluation improved the color, texture, and overall acceptability of the bars with fermented legumes. Various types of bean processing did not significantly affect the protein digestibility of the bars. The fermentation method positively affected the angiotensin-converting enzyme-inhibitory properties of bars and increased by 16.5% (before digestion) and 15% (after digestion) compared with other samples. After digestion, samples were characterized by a high level of Fe bioaccessibility (100, 83, and 79% for the bars based on soaked, autoclaved, and fermented fava beans, respectively) and increased total phenolic content. These findings highlight the potential health benefits of fava bean usage for snack products.
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Affiliation(s)
- Kateryna Khvostenko
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo (FoodUPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain (A.A.)
| | - Sara Muñoz-Pina
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo (FoodUPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain (A.A.)
| | - Jorge García-Hernández
- Centro Avanzado de Microbiología de Alimentos (CAMA), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ana Heredia
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo (FoodUPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain (A.A.)
| | - Ana Andrés
- Instituto Universitario de Ingeniería de Alimentos para el Desarrollo (FoodUPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain (A.A.)
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Sánchez-García J, Muñoz-Pina S, García-Hernández J, Tárrega A, Heredia A, Andrés A. Protein digestibility and ACE inhibitory activity of fermented flours in older adults and standard gastrointestinal simulation. Food Res Int 2024; 180:114080. [PMID: 38395555 DOI: 10.1016/j.foodres.2024.114080] [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: 11/05/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024]
Abstract
Consumption of essential amino acids responsible for muscle protein synthesis is important in preventing sarcopenia among older individuals. This population may experience gastrointestinal disorders that inhibit protein digestibility, making it crucial to address. Therefore, solid-state fermentation (SSF) using Pleurotus ostreatus and air drying has been suggested as a means of improving the protein digestibility of lentils and quinoa. SSF combined with air drying at 70 °C resulted in a slight increase in protein hydrolysis compared to unfermented samples. SSF was found to boost the proportion of small peptides to 35 %. Following digestion, SSF and drying yielded bioactive peptides of 1400 and 450 Da, with a range of 11 % to 28 %, respectively, and peptides < 190 Da making up 60 % of the total. SSF promoted valine, leucine, and isoleucine generation; however, hot air drying reduced free amino acids due to the amino acid-reducing sugar bonding but was never lower than the initial content of its unfermented counterpart. Furthermore, SSF and drying at 70 °C improved the release of hydrophobic amino acids (>70 mg/g dry basis) and negatively charged amino acids (>20 mg/g dry basis) in lentils during digestion. The SSF samples exhibited lower angiotensin converting enzyme (ACE) inhibitory activity, ≤35 %, compared to unfermented flours after digestion. However, the ACE inhibitory activity increased in SSF-dried samples, in part because of melanoidins generated during drying. Finally, lower values of protein digestibility and thus smaller peptides, amino acid profile, and ACE inhibitory activity of fermented flours were found in the older adult digestion model.
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Affiliation(s)
- Janaina Sánchez-García
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Sara Muñoz-Pina
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Jorge García-Hernández
- Centro Avanzado de Microbiología de Alimentos (CAMA), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Amparo Tárrega
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Agustín Escardino, 7, 46980 Paterna, Valencia, Spain
| | - Ana Heredia
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ana Andrés
- Instituto Universitario de Ingeniería de Alimentos - FoodUPV, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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Jiang Y, Wu J, Tian L, Liu Y, Zhao F, He Z, Mao Y, Jia J, Guan T. The therapeutic effects of fermented milk with lactic acid bacteria from traditional Daqu on hypertensive mice. J Dairy Sci 2024; 107:742-758. [PMID: 37709033 DOI: 10.3168/jds.2023-23858] [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: 06/11/2023] [Accepted: 08/26/2023] [Indexed: 09/16/2023]
Abstract
Lactic acid bacteria (LAB), a type of microorganism widely used in functional foods, has gained notable research attention in recent years. Certain strains possess the proteolytic ability to release potentially antihypertensive peptides from dairy proteins, which prompted us to explore the LAB strains from an understudied and unique ingredient, Daqu. We screened for 67 strains of LAB strains from traditional Daqu using the calcium dissolution ring method. Sixteen strains exhibiting angiotensin-converting enzyme inhibition (ACE-I) activity exceeding 50% were chosen for 16S rDNA sequencing and safety assessment. It is noteworthy that Enterococcus faecium CP640 and Lacticaseibacillus rhamnosus CP658 exhibited significant ACE-I activity, which was the result of strain fermentation in reconstituted skim milk. These 2 strains did not exhibit hemolytic activity or antibiotic resistance. They also did not produce biogenic amines and showed high survival rates in the gastrointestinal tract. Additionally, Enterococcus faecium CP640 and Lacticaseibacillus rhamnosus CP658 fermented milk exhibited a notable reduction in blood pressure levels in spontaneously hypertensive rats (SHR) compared with negative controls in SHR. Importantly, no adverse effect was observed in normal Wistar-Kyoto rats. Through the analysis of physiological, serum, and urine-related indicators, it was observed that Enterococcus faecium CP640 and Lacticaseibacillus rhamnosus CP658 have the potential to promote weight gain in SHR, alleviate excessive heart rate, improve renal function indicators, and effectively regulate blood sugar and uric acid levels in SHR. These 2 strains showed optimal properties in lowering blood pressure and have the potential to be used in functional dairy products in the future.
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Affiliation(s)
- Yuhang Jiang
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Jiang Wu
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Lei Tian
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Ying Liu
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Fan Zhao
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China
| | - Zongjun He
- Sichuan Tujiu of Liquor Co. Ltd., Nanchong, 637000, China
| | - Yichen Mao
- Xinjiang Kaiduhe of Liquor Co. Ltd., Hejing, 841302, China
| | - Jian Jia
- Sichuan Jiashite of Environmental Testing Co. Ltd., Chengdu, 611730, China
| | - Tongwei Guan
- College of Food and Bioengineering, Xihua University, Chengdu, 610039, China; Food Microbiology Key Laboratory of Sichuan Province, Xihua University, Chengdu, 610039, China.
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Helal A, Pierri S, Tagliazucchi D, Solieri L. Effect of Fermentation with Streptococcus thermophilus Strains on In Vitro Gastro-Intestinal Digestion of Whey Protein Concentrates. Microorganisms 2023; 11:1742. [PMID: 37512914 PMCID: PMC10386367 DOI: 10.3390/microorganisms11071742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/21/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Three Streptococcus thermophilus strains, namely RBC6, RBC20, and RBN16, were proven to release bioactive peptides during whey protein concentrate (WPC) fermentation, resulting in WPC hydrolysates with biological activities. However, these bioactive peptides can break down during gastro-intestinal digestion (GID), hindering the health-promoting effect of fermented WPC hydrolysates in vivo. In this work, the effect of simulated GID on three WPC hydrolysates fermented with S. thermophilus strains, as well as on unfermented WPC was studied in terms of protein hydrolysis, biological activities, and peptidomics profiles, respectively. In general, WPC fermentation enhanced protein hydrolysis compared to unfermented WPC. After in vitro GID, WPC fermented with S. thermophilus RBC20 showed the highest antioxidant activity, whereas WPC fermented with strain RBC06 displayed the highest angiotensin-converting enzyme (ACE)- and dipeptidyl peptidase IV (DPP-IV)-inhibitory activities. Peptidomics analysis revealed that all digested WPC samples were highly similar to each other in peptide profiles, and 85% of the 46 identified bioactive peptides were shared among fermented and unfermented samples. However, semi-quantitative analysis linked the observed differences in biological activities among the samples to differences in the amount of bioactive peptides. The anti-hypertensive peptides VPP and IPP, as well as the DPP-IV-inhibitory peptide APFPE, were quantified. In conclusion, WPC fermentation with S. thermophilus positively impacted protein hydrolysis and bioactive peptide release during GID.
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Affiliation(s)
- Ahmed Helal
- Department of Food and Dairy Sciences and Technology, Damanhour University, Damanhour 22516, Egypt
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2-Pad. Besta, 42100 Reggio Emilia, Italy
| | - Sara Pierri
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2-Pad. Besta, 42100 Reggio Emilia, Italy
| | - Davide Tagliazucchi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2-Pad. Besta, 42100 Reggio Emilia, Italy
| | - Lisa Solieri
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola, 2-Pad. Besta, 42100 Reggio Emilia, Italy
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
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Zhang X, Huang Y, Ma R, Tang Y, Li Y, Zhang S. Structural properties and antioxidant activities of soybean protein hydrolysates produced by Lactobacillus delbrueckii subsp. bulgaricus cell envelope proteinase. Food Chem 2023; 410:135392. [PMID: 36623464 DOI: 10.1016/j.foodchem.2023.135392] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/23/2022] [Accepted: 01/02/2023] [Indexed: 01/05/2023]
Abstract
In this work, we investigated the structural and biological properties of soybean protein isolate (SPI) after 0-8 h hydrolyzation with cell envelope proteinase (CEP) extracted from Lactobacillus delbrueckii subsp. bulgaricus. CEP hydrolysis increased the β-sheet and red-shifted the fluorescence peak, while decreasing the α-helix, indicating the unfolding of soybean proteins. Increased surface hydrophobicity and fluorescence of the soybean protein hydrolysates were correlated with the increased hydrophobic amino acid (from 209.67 to 217.6 mg/100 g). CEP tended to hydrolyze the N- and C-terminal regions of sequences dominated by Gly and Leu, which enhanced the antioxidant activity of the SPHs (lowest IC50s value of ABTS•+ and hydroxyl radical scavenging activity were 0.324 ± 0.006 mg/mL and 0.365 ± 0.001 mg/mL after 4 h hydrolysis). Comparison with the database of bioactive peptides suggested various potential biological activities, including antioxidant activity, angiotensin-converting enzyme inhibitory activity and dipeptidyl peptidase-IV inhibitory activity. The study findings have theoretical significance for the development of CEP hydrolysis and novel bioactive soybean peptides.
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Affiliation(s)
- Xiaoying Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yuyang Huang
- College of Food Engineering, Harbin University of Commerce, Harbin 150006, China
| | - Ruxin Ma
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yuqing Tang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Shuang Zhang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China.
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Chopada K, Basaiawmoit B, Sakure AA, Maurya R, Bishnoi M, Kondepudi KK, Solanki D, Singh BP, Padhi S, Rai AK, Liu Z, Mishra BK, Hati S. Purification and Characterization of Novel Antihypertensive and Antioxidative Peptides From Whey Protein Fermentate: In Vitro, In Silico, and Molecular Interactions Studies. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2022:1-20. [PMID: 36416542 DOI: 10.1080/27697061.2022.2110966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE The goal of this research was to purify and characterize the novel angiotensin-converting enzyme (ACE)-inhibitory and antioxidant peptides from fermented whey protein concentrate produced by Lactobacillus paracasei and Saccharomyces cerevisiae in a co-fermentation system. METHOD Whey protein fermented with lactic acid bacteria and yeast culture was analyzed for antioxidative, ACE inhibition, as well as anti-inflammatory activity followed by SDS-PAGE, isoelectric focusing, and 2-dimensional (2D) analysis. Anti-inflammatory activity of whey protein fermentate was also studied on the RAW 264.7 cell line. The bioactive peptides were separated from the whey protein fermentate using reverse-phase high-performance liquid chromatography (RP-HPLC) and reverse-phase liquid chromatography mass spectrometry (RPLC/MS), and thus identification and characterization of purified bioactive peptide was performed. RESULTS Whey protein fermentate samples' bioactivity was analyzed at specific time intervals at 12, 24, 36, and 48 hours at 37 °C for M11 and at 25 °C for WBS2A. The development settings (incubation time [12, 24, 36, and 48 hours) and inoculation rates [1.5%, 2.0%, and 2.5%]) were optimized for peptide synthesis via the o-phthaldialdehyde (OPA) method (proteolytic activity). Maximum proteolytic activity was observed at 37 °C for M11 (6.50 mg/mL) and at 25 °C for WBS2A (8.59 mg/mL) for 48 hours of incubation. Protein profiling was carried out using SDS-PAGE and 2D gel electrophoresis, in which Sodium dodecyl-sulfate (SDS) exhibited protein bands in the 10- to 55-kDa range, while 2D showed protein bands varying from 10 to 70 kDa. Every spot from 2D was digested by trypsin and identified by RPLC/MS. Protein fractionations (3- and 10-kDa permeates) were carried out employing RP-HPLC. Whey protein fermentate has anti-inflammatory action in RAW 264.7 macrophages that have been exposed to lipopolysaccharide. A molecular docking system was also used to investigate the interactions of peptides (AFLDSRTR, ILGAFIQIITFR) with human myeloperoxidase enzyme. CONCLUSIONS The antihypertensive and antioxidative peptides discovered from whey protein fermentate may be helpful in the design of pharmacologically active healthy ingredients in the upcoming years.
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Affiliation(s)
- Keval Chopada
- Department of Dairy Microbiology, SMC College of Dairy Science, Kamdhenu University, Gandhinagar, Gujarat, India
| | - Bethsheba Basaiawmoit
- Department of Rural Development and Agricultural Production, North-Eastern Hill University, Tura, Meghalaya, India
| | - Amar A Sakure
- Department of Agriculture Biotechnology, Anand Agricultural University, Anand, Gujarat, India
| | - Ruchika Maurya
- Regional Center for Biotechnology, Faridabad, Haryana, India
- Healthy Gut Research Group, Food & Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Punjab, India
| | - Mahendra Bishnoi
- Healthy Gut Research Group, Food & Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Punjab, India
| | - Kanthi Kiran Kondepudi
- Healthy Gut Research Group, Food & Nutritional Biotechnology Division, National Agri-Food Biotechnology Institute, Knowledge City, Punjab, India
| | - Divyang Solanki
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - B P Singh
- Department of Microbiology, Central University of Haryana, Mahendragarh, Haryana, India
| | - Srichandan Padhi
- Institute of Bioresources and Sustainable Development, Regional Centre, Tadong, Sikkim, India
| | - Amit Kumar Rai
- Institute of Bioresources and Sustainable Development, Regional Centre, Tadong, Sikkim, India
| | - Zhenbin Liu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - B K Mishra
- Department of Rural Development and Agricultural Production, North-Eastern Hill University, Tura, Meghalaya, India
| | - Subrota Hati
- Department of Dairy Microbiology, SMC College of Dairy Science, Kamdhenu University, Gandhinagar, Gujarat, India
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Wang K, Gao Y, Zhao J, Wu Y, Sun J, Niu G, Zuo F, Zheng X. Effects of in vitro digestion on protein degradation, phenolic compound release, and bioactivity of black bean tempeh. Front Nutr 2022; 9:1017765. [PMID: 36313087 PMCID: PMC9605811 DOI: 10.3389/fnut.2022.1017765] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/27/2022] [Indexed: 11/18/2022] Open
Abstract
The nutritional value and bioactivity of black beans are enhanced when fermented as tempeh, but their bioaccessibility and bioactivity after ingestion remain unclear. In this study, black bean tempeh and unfermented black beans were digested in vitro and changes in protein degradation, phenolic compound release, angiotensin I-converting enzyme (ACE)-inhibitory activity, and antioxidant activity between the two groups were compared. We observed that the soluble protein content of digested black bean tempeh was generally significantly higher than that of digested unfermented black beans at the same digestion stage (P < 0.05). The degree of protein hydrolysis and the content of <10 kDa peptides were also significantly higher in the digested black bean tempeh than in digested unfermented black beans (P < 0.05). SDS-polyacrylamide gel electrophoresis (SDS-PAGE) and reversed-phase high-performance liquid chromatography (RP-HPLC) analysis showed that most macromolecular proteins in tempeh had been degraded during fermentation and more of the small peptides were released from black bean tempeh during digestion, respectively. Compared to that of the unfermented black beans, the level of ACE inhibition of black bean tempeh was lower, but this significantly increased to 82.51% following digestion, closing the gap with unfermented black beans. In addition, the total respective levels of phenolics, flavonoids, and proanthocyanidins released from black bean tempeh were 1.21, 1.40, and 1.55 times those of unfermented black beans following in vitro digestion, respectively. Antioxidant activity was also significantly higher in digested black bean tempeh than in digested unfermented black beans and showed a positive correlation with phenolic compound contents (P < 0.05). The results of this study proved that, compared to unfermented black beans, black bean tempeh retained protein and phenolic compound bioaccessibility and antioxidant activity and showed an improved ACE-inhibitory activity even after consumption.
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Affiliation(s)
- Kun Wang
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China,National Coarse Cereals Engineering Research Center, Daqing, China
| | - Yongjiao Gao
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jing Zhao
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yue Wu
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jingchen Sun
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Guangcai Niu
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Feng Zuo
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China,Engineering Research Center of Processing and Utilization of Grain By-products, Ministry of Education, Daqing, China,*Correspondence: Feng Zuo,
| | - Xiqun Zheng
- College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, China,National Coarse Cereals Engineering Research Center, Daqing, China,Xiqun Zheng,
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Abstract
Legume proteins have a promising future in the food industry due to their nutritional, environmental, and economic benefits. However, their application is still limited due to the presence of antinutritional and allergenic compounds, their poor technological properties, and their unpleasant sensory characteristics. Fermentation has been traditionally applied to counteract these inconveniences. At present, lactic acid fermentation of legumes is attracting the attention of researchers and industry in relation to the development of healthier, tasty, and technologically adapted products. Hence, we aimed to review the literature to shed light on the effect of lactic acid fermentation on legume protein composition and on their nutritional, functional, technological, and sensorial properties. The antimicrobial activity of lactic acid bacteria during legume fermentation was also considered. The heterogenicity of raw material composition (flour, concentrate, and isolate), the diversity of lactic acid bacteria (nutriment requirements, metabolic pathways, and enzyme production), and the numerous possible fermenting conditions (temperature, time, oxygen, and additional nutrients) offer an impressive range of possibilities with regard to fermented legume products. Systematic studies are required in order to determine the specific roles of the different factors. The optimal selection of these criteria will allow one to obtain high-quality fermented legume products. Fermentation is an attractive technology for the development of legume-based products that are able to satisfy consumers’ expectations from a nutritional, functional, technological, and sensory point of view.
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Exploring the potential of Lactobacillus and Saccharomyces for biofunctionalities and the release of bioactive peptides from whey protein fermentate. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bioactive Peptides from Liquid Milk Protein Concentrate by Sequential Tryptic and Microbial Hydrolysis. Processes (Basel) 2021. [DOI: 10.3390/pr9101688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Recently, bioactive peptides as a health-promoting agent have come to the forefront of health research; however, industrial production is limited, possibly due to the lack of the required technological knowledge. The objective of the investigation was to prepare bioactive peptides with hypoallergenic properties from liquid milk protein concentrate (LMPC), through sequential enzymatic and microbial hydrolysis. LMPC was produced from ultra-heat-treated (UHT) skimmed cow’s milk using a nanofiltration membrane. The effect of the concentration of trypsin (0.008–0.032 g·L−1) on the hydrolysis of LMPC was studied. Subsequently, the hydrolysis of tryptic-hydrolyzed LMPC (LMPC-T) with lactic acid bacteria was performed, and the effect of glucose in microbial hydrolysis was studied. Aquaphotomic analysis of the hydrolysis of LMPC was performed using the spectral range of 1300–1600 nm (near-infrared spectra). Changes in antioxidant capacity, anti-angiotensin-converting enzyme activity, and antibacterial activity against Bacillus cereus, Staphylococcus aureus and Listeria monocytogenes were noted after the sequential tryptic and microbial hydrolysis of LMPC. Allergenicity in LMPC was reduced, due to sequential hydrolysis with 0.016 g·L−1 of trypsin and lacteal acid bacteria. According to the aquaphotomic analysis result, there was a dissociation of hydrogen bonds in compounds during the initial period of fermentation and, subsequently, the formation of compounds with hydrogen bonds. The formation of compounds with a hydrogen bond was more noticeable when microbial hydrolysis was performed with glucose. This may support the belief that the results of the present investigation will be useful to scale up the process in the food and biopharmaceutical industries.
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Shori AB, Hong YC, Baba AS. Proteolytic profile, angiotensin-I converting enzyme inhibitory activity and sensory evaluation of Codonopsis pilosula and fish collagen cheese. Food Res Int 2021; 143:110238. [PMID: 33992351 DOI: 10.1016/j.foodres.2021.110238] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 01/25/2021] [Accepted: 02/14/2021] [Indexed: 10/22/2022]
Abstract
Four types of cheeses were prepared included plain- cheese (control), Codonopsis pilosula (CP)- cheese, plain- cheese with fish collagen (FC; control) and CP- cheese with FC. The effects of cheese samples on acidification, proteolysis of milk proteins using three methods (cadmium-ninhydrin method, O-phthaldialdehyde (OPA) assay, and electrophoresis assay), and angiotensin-converting enzyme (ACE)-inhibitory activity were investigated during 0, 2, & 4 weeks of ripening. In addition, the sensory evaluation was also investigated during 0, 2, 4, & 8 weeks of ripening. The presence of FC in CP- cheese increased the numbers of free amino acids (FAA) at 0 and 2 weeks. The addition of CP both in the presence and absence of FC affected positively (p < 0.05) on the concentrations of OPA peptide in cheese compared to their respective controls. The presence of CP and/or FC in cheese increased the degradation of milk proteins (α-, β-, & κ- caseins, β-lactoglobulin, and α-lactalbumin) compared to their respective controls during ripening periods. The highest ACE inhibitory activity was shown at 4 weeks of ripening for CP- cheese both in the absence (67.75 ± 14.15%) and the presence (78.65 ± 2.85%) of FC. In addition, 8-week-old CP-cheese in the presence and absence of fish collagen had similar organoleptic characteristics to plain-cheese. In conclusion, C. pilosula and/or fish collagen may lead to the development in the production and formulation of cheese with anti-ACE activity.
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Affiliation(s)
- Amal Bakr Shori
- King Abdulaziz University, Faculty of Science, Department of Biological Sciences, Jeddah 21589, Saudi Arabia.
| | - Yoong Chia Hong
- Biomolecular Research Group, Division of Biochemistry, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ahmad Salihin Baba
- Biomolecular Research Group, Division of Biochemistry, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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13
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Emkani M, Oliete B, Saurel R. Pea Protein Extraction Assisted by Lactic Fermentation: Impact on Protein Profile and Thermal Properties. Foods 2021; 10:549. [PMID: 33800873 PMCID: PMC8001262 DOI: 10.3390/foods10030549] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 11/16/2022] Open
Abstract
Although pea protein has been widely explored, its consumption is still limited by undesirable sensory characteristics and low solubility. All these properties can be modified during protein extraction process. Besides, previous studies showed that lactic acid bacteria (LAB) have a positive effect on legume protein ingredients in terms of flavor and functional properties. Hence, the objective of this work was to explore an alternative extraction method based on alkaline extraction/isoelectric precipitation (AEIEP) resulting in globulin-rich and residual albumin-rich fractions. Here, the decrease in pH was achieved by lactic fermentation instead of mineral acid addition. Different bacteria strains (Streptococcus thermophilus, Lactobacillus acidophilus and Bifidobacterium lactis) have been used alone or in co-culture, and the results were compared with the usual acidification. The extraction assisted by fermentation led to the increase by 20-30% in protein content/yield of the albumin fraction, meaning that the solubility of the extracted pea protein was increased. This result could be explained by the proteolytic activity of bacteria during lactic fermentation. Therefore, the thermal denaturation properties of the isolated protein fractions measured by differential scanning calorimetry could be mainly ascribed to differences in their polypeptide compositions. In particular, higher denaturation enthalpy in globulin fractions after fermentation compared to AEIEP (~15 J/g protein vs. ~13 J/g protein) revealed the relative enrichment of this fraction in pea legumins; a higher part of 7S globulins seemed to be consumed by lactic acid bacteria.
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Affiliation(s)
| | | | - Rémi Saurel
- Physico-Chimie des Aliments et du Vin, PAM UMR A 02.102, AgroSup Dijon, Université Bourgogne Franche-Comté, F-21000 Dijon, France; (M.E.); (B.O.)
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14
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Rodríguez-Hernández G, Rentería-Monterrubio AL, Gutiérrez-Méndez N, Ortega-Gutiérrez JA, Santellano-Estrada E, Rojas-González S, Chávez-Martínez A. Effect of probiotic cultures on the angiotensin converting enzyme inhibitory activity of whey-based fermented beverages. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2020; 57:3731-3738. [PMID: 32903884 PMCID: PMC7447725 DOI: 10.1007/s13197-020-04405-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/16/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
Fermented whey-based beverages were elaborated using commercial probiotics cultures (CHR HANSEN): BCT-1®, ABT-4®, ABC where A: Lactobacillus acidophilus, B: Bifidobacterium animalis subsp. lactis, C: Lactobacillus paracasei subsp. paracasei and T: Streptococccus thermophiles. Three treatments were prepared with these probiotics cultures and a treatment without cultures added as a control. All beverage were maintained at 4 °C and evaluated during their shelf life at 0, 7, 14 and 21 days. The variables analyzed were peptide concentration, proteolysis, ACE-inhibitory activity and, peptide and aromatic amino acid profiles. Principal component analysis (PCA) was conducted to assess the relationship between these variables. All whey-based fermented beverages added with probiotics presented ACE inhibitory activity (22-100%). However, whey-based beverage without probiotics added had the highest ACE inhibitory activity (100%), and it was maintained during its shelf life. Fermented beverage with ABT-4® culture had an ACE inhibitory activity from 80 to 100% during its shelf life. Thus can be attributed to the release of peptides during processing. Meanwhile, significative correlations were observed between variables varying this depending on the treatment, both, in magnitude and in direct or inverse direction (0.684-0.986). The ACE inhibitory activity was correlated to proteolysis and peptide and aromatic amino acids profiles. And, the IC50 was observed in the range of 0.01-0.055 mg/mL.
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Affiliation(s)
- Gabriela Rodríguez-Hernández
- División de Ciencias de La Vida, Departamento de Alimentos, Universidad de Guanajuato, Ex-Hacienda El Copal, km 9 Carretera Irapuato-Silao, Irapuato, Guanajuato C.P. 36824 México
| | - Ana Luisa Rentería-Monterrubio
- Facultad de Zootecnia Y Ecología, Universidad Autónoma de Chihuahua, Perif. R. Almada km 1. Chihuahua, Chihuahua, C.P. 31453 México
| | - Néstor Gutiérrez-Méndez
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario Campus Ll. Chihuahua, Chihuahua, C.P. 31240 México
| | - Juan Angel Ortega-Gutiérrez
- Facultad de Zootecnia Y Ecología, Universidad Autónoma de Chihuahua, Perif. R. Almada km 1. Chihuahua, Chihuahua, C.P. 31453 México
| | - Eduardo Santellano-Estrada
- Facultad de Zootecnia Y Ecología, Universidad Autónoma de Chihuahua, Perif. R. Almada km 1. Chihuahua, Chihuahua, C.P. 31453 México
| | - Servando Rojas-González
- División de Ciencias de La Vida, Departamento de Medicina Veterinaria, Universidad de Guanajuato, Ex-Hacienda El Copal, km 9 Carretera Irapuato-Silao, Irapuato, Guanajuato C.P. 36824 México
| | - América Chávez-Martínez
- Facultad de Zootecnia Y Ecología, Universidad Autónoma de Chihuahua, Perif. R. Almada km 1. Chihuahua, Chihuahua, C.P. 31453 México
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15
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Rafiq S, Gulzar N, Sameen A, Huma N, Hayat I, Ijaz R. Functional role of bioactive peptides with special reference to cheeses. INT J DAIRY TECHNOL 2020. [DOI: 10.1111/1471-0307.12732] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saima Rafiq
- Department of Food Science and Technology Faculty of Agriculture University of Poonch Rawalakot 12350 Azad kashmirPakistan
| | - Nabila Gulzar
- Department of Dairy Technology University of Veterinary and Animal Sciences Lahore Lahore55300Pakistan
| | - Aysha Sameen
- National Institute of Food Science and Technology University of Agriculture Faisalabad38040Pakistan
| | - Nuzhat Huma
- National Institute of Food Science and Technology University of Agriculture Faisalabad38040Pakistan
| | - Imran Hayat
- Department of Food Science and Technology Faculty of Agriculture University of Poonch Rawalakot 12350 Azad kashmirPakistan
| | - Raina Ijaz
- Department of Horticulture Faculty of Agriculture University of Poonch Rawalakot 12350 Azad Kashmir Pakistan
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16
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Production of Liquid Milk Protein Concentrate with Antioxidant Capacity, Angiotensin Converting Enzyme Inhibitory Activity, Antibacterial Activity, and Hypoallergenic Property by Membrane Filtration and Enzymatic Modification of Proteins. Processes (Basel) 2020. [DOI: 10.3390/pr8070871] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Liquid milk protein concentrate with different beneficial values was prepared by membrane filtration and enzymatic modification of proteins in a sequential way. In the first step, milk protein concentrate was produced from ultra-heat-treated skimmed milk by removing milk serum as permeate. A tubular ceramic-made membrane with filtration area 5 × 10−3 m2 and pore size 5 nm, placed in a cross-flow membrane house, was adopted. Superior operational strategy in filtration process was herein: trans-membrane pressure 3 bar, retention flow rate 100 L·h−1, and implementation of a static turbulence promoter within the tubular membrane. Milk with concentrated proteins from retentate side was treated with the different concentrations of trypsin, ranging from 0.008–0.064 g·L−1 in individual batch-mode operations at temperature 40 °C for 10 min. Subsequently, inactivation of trypsin in reaction was done at a temperature of 70 °C for 30 min of incubation. Antioxidant capacity in enzyme-treated liquid milk protein concentrate was measured with the Ferric reducing ability of plasma assay. The reduction of angiotensin converting enzyme activity by enzyme-treated liquid milk protein concentrate was measured with substrate (Abz-FRK(Dnp)-P) and recombinant angiotensin converting enzyme. The antibacterial activity of enzyme-treated liquid milk protein concentrate towards Bacillus cereus and Staphylococcus aureus was tested. Antioxidant capacity, anti-angiotensin converting enzyme activity, and antibacterial activity were increased with the increase of trypsin concentration in proteolytic reaction. Immune-reactive proteins in enzyme-treated liquid milk protein concentrate were identified with clinically proved milk positive pooled human serum and peroxidase-labelled anti-human Immunoglobulin E. The reduction of allergenicity in milk protein concentrate was enzyme dose-dependent.
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17
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Ge J, Sun CX, Corke H, Gul K, Gan RY, Fang Y. The health benefits, functional properties, modifications, and applications of pea (Pisum sativum L.) protein: Current status, challenges, and perspectives. Compr Rev Food Sci Food Saf 2020; 19:1835-1876. [PMID: 33337084 DOI: 10.1111/1541-4337.12573] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/31/2020] [Accepted: 05/03/2020] [Indexed: 01/23/2023]
Abstract
In recent years, the development and application of plant proteins have drawn increasing scientific and industrial interests. Pea (Pisum sativum L.) is an important source of high-quality vegetable protein in the human diet. Its protein components are generally considered hypoallergenic, and many studies have highlighted the health benefits associated with the consumption of pea protein. Pea protein and its hydrolysates (pea protein hydrolysates [PPH]) possess health benefits such as antioxidant, antihypertensive, and modulating intestinal bacteria activities, as well as various functional properties, including solubility, water- and oil-holding capacities, and emulsifying, foaming, and gelling properties. However, the application of pea protein in the food system is limited due to its poor functional performances. Several frequently applied modification methods, including physical, chemical, enzymatic, and combined treatments, have been used for pea protein to improve its functional properties and expand its food applications. To date, different applications of pea protein in the food system have been extensively studied, for example, encapsulation for bioactive ingredients, edible films, extruded products and substitution for cereal flours, fats, and animal proteins. This article reviews the current status of the knowledge regarding pea protein, focusing on its health benefits, functional properties, and structural modifications, and comprehensively summarizes its potential applications in the food industry.
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Affiliation(s)
- Jiao Ge
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Cui-Xia Sun
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Harold Corke
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Khalid Gul
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ren-You Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, People's Republic of China
| | - Yapeng Fang
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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18
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Jakubczyk A, Karaś M, Rybczyńska-Tkaczyk K, Zielińska E, Zieliński D. Current Trends of Bioactive Peptides-New Sources and Therapeutic Effect. Foods 2020; 9:E846. [PMID: 32610520 PMCID: PMC7404774 DOI: 10.3390/foods9070846] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022] Open
Abstract
Generally, bioactive peptides are natural compounds of food or part of protein that are inactive in the precursor molecule. However, they may be active after hydrolysis and can be transported to the active site. Biologically active peptides can also be synthesized chemically and characterized. Peptides have many properties, including antihypertensive, antioxidant, antimicrobial, anticoagulant, and chelating effects. They are also responsible for the taste of food or for the inhibition of enzymes involved in the development of diseases. The scientific literature has described many peptides with bioactive properties obtained from different sources. Information about the structure, origin, and properties of peptides can also be found in many databases. This review will describe peptides inhibiting the development of current diseases, peptides with antimicrobial properties, and new alternative sources of peptides based on the current knowledge and documentation of their bioactivity. All these issues are part of modern research on peptides and their use in current health or technological problems in food production.
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Affiliation(s)
- Anna Jakubczyk
- Department of Biochemistry and Food Chemistry, University of Life Sciences in Lublin, 20-704 Lublin, Poland;
| | - Monika Karaś
- Department of Biochemistry and Food Chemistry, University of Life Sciences in Lublin, 20-704 Lublin, Poland;
| | - Kamila Rybczyńska-Tkaczyk
- Department of Environmental Microbiology, University of Life Sciences in Lublin, 20-069 Lublin, Poland;
| | - Ewelina Zielińska
- Department of Analysis and Evaluation of Food Quality, University of Life Sciences in Lublin, 20-704 Lublin, Poland;
| | - Damian Zieliński
- Department of Animal Ethology and Wildlife Management, University of Life Sciences in Lublin, 20-950 Lublin, Poland;
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19
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Shori AB, Ming KS, Baba AS. The effects of Lycium barbarum water extract and fish collagen on milk proteolysis and in vitro angiotensin I-converting enzyme inhibitory activity of yogurt. Biotechnol Appl Biochem 2020; 68:221-229. [PMID: 32249982 DOI: 10.1002/bab.1914] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 03/25/2020] [Indexed: 12/19/2022]
Abstract
Plain and Lycium barbarum yogurt were made in the presence and absence of fish collagen. Yogurt samples were analyzed for acidification, milk protein proteolysis, angiotensin I-converting enzyme (ACE) inhibitory activity, and sensory evaluation during refrigerated storage for up to 21 days. The o-phthaldialdehyde peptides amount of L. barbarum yogurt both in the presence and absence of fish collagen were significantly increased during 14 days of storage. SDS-PAGE showed improvement in whey proteins degradation of L. barbarum yogurt with/without fish collagen after 3 weeks of storage. L. barbarum yogurt in absence of fish collagen was acting as a great ACE inhibitor reached up to 85% on day 7 of storage. The incorporation of L. barbarum and/or fish collagen affected to a small extent the overall sensory characteristics of yogurt. Yogurt supplemented with L. barbarum and/or fish collagen may lead to the improvement in the production and formulation of yogurt differing in their anti-ACE activity.
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Affiliation(s)
- Amal Bakr Shori
- King Abdulaziz University, Faculty of Science, Department of Biological Sciences, Jeddah, Saudi Arabia
| | - Kong Siew Ming
- Biomolecular Research Group, Division of Biochemistry, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Ahmad Salihin Baba
- Biomolecular Research Group, Division of Biochemistry, Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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20
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Xiao L, Liao F, Ide R, Horie T, Fan Y, Saiki C, Miwa N. Enzyme-digested Colla Corii Asini (E'jiao) prevents hydrogen peroxide-induced cell death and accelerates amyloid beta clearance in neuronal-like PC12 cells. Neural Regen Res 2020; 15:2270-2272. [PMID: 32594048 PMCID: PMC7749479 DOI: 10.4103/1673-5374.285000] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
As an aging-associated degenerative disease, Alzheimer’s disease is characterized by the deposition of amyloid beta (Aβ), oxidative stress, inflammation, dysfunction and loss of cholinergic neurons. Colla Corii Asini (CCA) is a traditional Chinese medicine which has been used for feebleness-related diseases and anti-aging. CCA might delay aging-induced degenerative changes in neurons. In the present study, we evaluated antioxidant activity, cytoprotective effects, and Aβ removability of enzyme-digested Colla Corii Asini (CCAD). Oxygen radical absorbance capacity (ORAC) activity assay showed that, as compared to gelatins from the skin of porcine, bovine and cold water fish, CCA exhibited the highest ORAC activity. The ORAC activity of CCA and CCAD was increased gradually by the length of time in storage. Ultrastructure analysis by scanning electron microscopy showed that among CCA manufactured in 2008, 2013, 2017 and gelatin from cold water fish skin, CCA manufactured in 2008 presented the smoothest surface structure. We further tested the protective effects of CCAD (manufactured in 2008) and enzyme-digested gelatin from cold water fish skin (FGD) on hydrogen peroxide (H2O2)-induced cell death in nerve growth factor-differentiated neuronal-like PC12 cells. Presto blue assay showed that both FGD and CCAD at 0.5 mg/mL increased cell viability in H2O2-treated neuronal-like PC12 cells. The protection of CCAD was significantly superior to that of FGD. Acetylcholinesterase (AchE) assay showed that both FGD and CCAD inhibited AchE activity in nerve growth factor-differentiated neuronal-like PC12 cells to 89.1% and 74.5% of that in non-treated cells, respectively. The data suggest that CCAD might be able to increase the neurotransmitter acetylcholine. Although CCAD inhibited AchE activity in neuronal-like PC12 cells, CCAD prevented H2O2-induced abnormal deterioration of AchE. ELISA and neprilysin activity assay results indicated that CCAD reduced amyloid beta accumulation and increased neprilysin activity in Aβ1–42-treated neuronal-like PC12 cells, suggesting that CCAD can enhance Aβ clearance. Our results suggest that CCA might be useful for preventing and treating Alzheimer’s disease.
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Affiliation(s)
- Li Xiao
- Department of Pharmacology, The Nippon Dental University, School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Feng Liao
- National Engineering Research Center for Gelatin-based Traditional Chinese Medicine, Dong-E-E-Jiao Co. Ltd., Liaocheng, Shandong Province, China
| | - Ryoji Ide
- Department of Physiology, The Nippon Dental University, School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Tetsuro Horie
- Research Center, The Nippon Dental University, School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Yumei Fan
- National Engineering Research Center for Gelatin-based Traditional Chinese Medicine, Dong-E-E-Jiao Co. Ltd., Liaocheng, Shandong Province, China
| | - Chikako Saiki
- Department of Physiology, The Nippon Dental University, School of Life Dentistry at Tokyo, Tokyo, Japan
| | - Nobuhiko Miwa
- Department of Life Sciences, Prefectural University of Hiroshima, Hiroshima, Japan
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21
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Giromini C, Lovegrove JA, Givens DI, Rebucci R, Pinotti L, Maffioli E, Tedeschi G, Sundaram TS, Baldi A. In vitro-digested milk proteins: Evaluation of angiotensin-1-converting enzyme inhibitory and antioxidant activities, peptidomic profile, and mucin gene expression in HT29-MTX cells. J Dairy Sci 2019; 102:10760-10771. [PMID: 31521344 DOI: 10.3168/jds.2019-16833] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 07/16/2019] [Indexed: 12/15/2022]
Abstract
Over the past decades, several studies investigated the health-promoting functions of milk peptides. However, to date many hurdles still exist regarding the widespread use of milk-derived bioactive peptides, as they may be degraded during gastrointestinal digestion. Thus, the aim of our study was to in vitro digest intact whey protein isolate (WPI) and casein proteins (CNP), mimicking in vivo digestion, to investigate their bioactive effects and to identify the potential peptides involved. Whey protein isolate and CNP were digested using a pepsin-pancreatin protocol and ultra-filtered (3-kDa cutoff membrane). A permeate (<3 kDa) and a retentate (>3 kDa) were obtained. Soy protein was included as a control (CTR). Angiotensin-1-converting enzyme inhibitory (ACE1-I) and antioxidant activity (AOX) were assessed and compared with those observed in undigested proteins and CTR. Furthermore, the permeate was characterized by nano-liquid chromatography electrospray ionization tandem mass spectrometry (LC-nano ESI MS/MS) using a shotgun peptidomic approach, and retentate was further digested with trypsin and analyzed by MS using a shotgun proteomic approach to identify potentially bioactive peptides. Further, the effects of WPI, CNP, and CTR retentate on cell metabolic activity and on mucus production (MUC5AC and MUC2 gene expression) were assessed in intestinal goblet HT29-MTX-E12 cells. Results showed that WPI permeate induced a significant ACE1-I inhibitory effect [49.2 ± 0.64% (SEM)] compared with undigested WPI, CNP permeate, and retentate or CTR permeate (10.40 ± 1.07%). A significant increase in AOX (1.58 ± 0.04 and 1.61 ± 0.02 µmol of trolox AOX equivalents per mg of protein, respectively) upon digestion was found in WPI. Potentially bioactive peptides associated with ACE1-I and antihypertensive effects were identified in WPI permeate and CNP retentate. At specific concentrations, WPI, CNP, and CTR retentate were able to stimulate metabolic activity in HT29-MTX-E12 cells. Expression of MUC5AC was increased by CNP retentate and unaltered by WPI retentate; MUC2 expression was significantly increased by 0.33 mg/g of CNP and reduced by 1.33 mg/g of CNP. Our results confirm that milk proteins may be rich sources of bioactive compounds, with the greatest beneficial potential of CNP at the intestinal goblet cell level.
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Affiliation(s)
- Carlotta Giromini
- Department of Health, Animal Science and Food Safety, University of Milan, 20133 Italy.
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, RG6 6AP United Kingdom; Institute for Cardiovascular and Metabolic Research, University of Reading, RG6 6AP United Kingdom
| | - David I Givens
- Institute for Food, Nutrition and Health, University of Reading, RG6 6AP United Kingdom
| | - Raffaella Rebucci
- Department of Health, Animal Science and Food Safety, University of Milan, 20133 Italy
| | - Luciano Pinotti
- Department of Health, Animal Science and Food Safety, University of Milan, 20133 Italy
| | - Elisa Maffioli
- Department of Veterinary Medicine, University of Milan, 20133 Italy
| | | | - Tamil S Sundaram
- Department of Health, Animal Science and Food Safety, University of Milan, 20133 Italy
| | - Antonella Baldi
- Department of Health, Animal Science and Food Safety, University of Milan, 20133 Italy
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22
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Mishra BK, Hati S, Das S. Bio-nutritional aspects of Tungrymbai, an ethnic functional fermented soy food of Khasi Hills, Meghalaya, India. CLINICAL NUTRITION EXPERIMENTAL 2019. [DOI: 10.1016/j.yclnex.2019.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Jakubczyk A, Karaś M, Złotek U, Szymanowska U, Baraniak B, Bochnak J. Peptides obtained from fermented faba bean seeds (Vicia faba) as potential inhibitors of an enzyme involved in the pathogenesis of metabolic syndrome. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Morales-Camacho JI, Espinosa-Hernández E, Fernández-Velasco DA, Benítez-Cardoza CG, Luna-Suárez S. Insertion of antihypertensive peptides in acidic subunit from amaranth 11S induces contrasting effects in stability. Appl Microbiol Biotechnol 2018; 102:9595-9606. [PMID: 30209550 DOI: 10.1007/s00253-018-9300-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/29/2018] [Accepted: 08/01/2018] [Indexed: 11/24/2022]
Abstract
The insertion of peptides is a biotechnology tool widely used to improve the nutraceutical properties of proteins. Because the effect of these insertions in protein stability and function is difficult to predict, it should be determined experimentally. In this study, we created two variants of amarantin acidic subunit and analyzed them along with other four proteins reported previously. We measured their response against two destabilizing agents: temperature and urea. The six proteins presented the insertion of antihypertensive peptides (VYVYVYVY or RIPP) in the variable regions of the protein. We observed that their effect strongly depended on the site of the insertion. The insertion in the variable region I stabilized the protein both thermally and chemically, but it affected the inhibitory activity of the angiotensin-converting enzyme in vitro. In contrast, insertions in other three regions were severely destabilizing, producing molten globules. Our findings reveal that the insertion of bioactive peptides in variable regions of a protein can increase or decrease the protein's thermal and chemical stability and that these conformational changes may also alter its final activity.
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Affiliation(s)
- Jocksan I Morales-Camacho
- Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, CIBA-IPN, Tepetitla, 90700, Tlaxcala, Mexico.,Departamento de Ingeniería Química, Alimentos y Ambiental, Universidad de las Américas Puebla, Sta. Catarina Mártir, San Andrés Cholula, 72810, Puebla, Mexico
| | - Edgar Espinosa-Hernández
- Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, CIBA-IPN, Tepetitla, 90700, Tlaxcala, Mexico
| | - D Alejandro Fernández-Velasco
- Laboratorio de Fisicoquímica e Ingeniería de Proteínas, Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, D.F., 04510, México, Mexico
| | - Claudia G Benítez-Cardoza
- Laboratorio de Investigación Bioquímica, Instituto Politécnico Nacional, ENMyH-IPN, D.F, 07320, México, Mexico
| | - Silvia Luna-Suárez
- Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, CIBA-IPN, Tepetitla, 90700, Tlaxcala, Mexico.
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Aspri M, Leni G, Galaverna G, Papademas P. Bioactive properties of fermented donkey milk, before and after in vitro simulated gastrointestinal digestion. Food Chem 2018; 268:476-484. [PMID: 30064786 DOI: 10.1016/j.foodchem.2018.06.119] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 06/15/2018] [Accepted: 06/23/2018] [Indexed: 12/28/2022]
Abstract
Indigenous strains of lactic acid bacteria previously isolated from raw donkey milk samples were used to ferment donkey milk. Each sample was subjected to an in vitro simulated gastrointestinal digestion (SGID) and analysis of the digesta by HPLC-LTQ-Orbitrap XL was performed in order to obtain a comprehensive peptide profile of fermented donkey milk. Functional properties such as ACE-inhibitory, antimicrobial and antioxidant activities of the resulting fermented donkey milks, as well as characterization of the bioactive peptides produced by an in vitro SGID, were assayed. All bioactivities were found to be high in fermented milk and a further significant increase was observed after SGID. The Enterococcus faecium DM33 fermented milk exhibited the strongest antioxidant and the highest antimicrobial activities. The highest ACE-inhibitory activity was observed in milk fermented with Lactobacillus casei DM214. These findings will contribute to the development of a new functional dairy drink with anti-hypertensive, antimicrobial and/or antioxidant activities.
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Affiliation(s)
- Maria Aspri
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus
| | - Giulia Leni
- Food and Drug Department, University of Parma, Italy
| | | | - Photis Papademas
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Limassol, Cyprus.
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Giromini C, Fekete ÁA, Givens DI, Baldi A, Lovegrove JA. Short-Communication: A Comparison of the In Vitro Angiotensin-1-Converting Enzyme Inhibitory Capacity of Dairy and Plant Protein Supplements. Nutrients 2017; 9:nu9121352. [PMID: 29236035 PMCID: PMC5748802 DOI: 10.3390/nu9121352] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/30/2017] [Accepted: 12/03/2017] [Indexed: 11/16/2022] Open
Abstract
The consumption of supplements based on dairy or plant proteins may be associated with bioactive potential, including angiotensin-1-converting enzyme inhibitory (ACE-1i) activity, which is linked with blood pressure reduction in vivo. To gain insight into this proposed mechanism, the ACE-1i potential of protein-based supplements, including a selection of dairy (n = 10) and plant (n = 5) proteins were in vitro digested. The total digest was filtered and permeate and retentate were obtained. ACE-1i activity was measured as the ability of proteins (pre-digestion, ‘gastric’, permeate, and retentate) to decrease the hydrolysis of furanacroloyl-Phe-Glu-Glu (FAPGG) substrate for the ACE-1 enzyme. Permeate and retentate of dairy proteins exerted a significantly higher ACE-1i activity (mean of 10 proteins: 27.05 ± 0.2% and 20.7 ± 0.2%, respectively) compared with pre-digestion dairy proteins (16.7 ± 0.3%). Plant protein exhibited high ACE-1i in ‘gastric’ and retentate fractions (mean of five proteins: 54.9 ± 0.6% and 35.7 ± 0.6%, respectively). The comparison of the in vitro ACE-1i activity of dairy and plant proteins could provide valuable knowledge regarding their specific bioactivities, which could inform their use in the formulation of specific functional supplements that would require testing for blood pressure control in human randomly-controlled studies.
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Affiliation(s)
- Carlotta Giromini
- Department of Health, Animal Science and Food Safety, University of Milan, Via Trentacoste, 2, 20134 Milan, Italy.
| | - Ágnes A Fekete
- Hugh Sinclair Unit of Human Nutrition Department of Food and Nutritional Sciences, University of Reading, Whiteknights, P.O. Box 226, Reading RG6 6AP, UK.
- Institute for Food, Nutrition and Health, University of Reading, Reading RG6 6AP, UK.
| | - D Ian Givens
- Institute for Food, Nutrition and Health, University of Reading, Reading RG6 6AP, UK.
| | - Antonella Baldi
- Department of Health, Animal Science and Food Safety, University of Milan, Via Trentacoste, 2, 20134 Milan, Italy.
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition Department of Food and Nutritional Sciences, University of Reading, Whiteknights, P.O. Box 226, Reading RG6 6AP, UK.
- Institute for Cardiovascular and Metabolic Research, University of Reading, Whiteknights, P.O. Box 226, Reading RG6 6AP, UK.
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Jakubczyk A, Karaś M, Złotek U, Szymanowska U. Identification of potential inhibitory peptides of enzymes involved in the metabolic syndrome obtained by simulated gastrointestinal digestion of fermented bean ( Phaseolus vulgaris L.) seeds. Food Res Int 2017; 100:489-496. [DOI: 10.1016/j.foodres.2017.07.046] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 02/06/2023]
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Li C, Kwok LY, Mi Z, Bala J, Xue J, Yang J, Ma Y, Zhang H, Chen Y. Characterization of the angiotensin-converting enzyme inhibitory activity of fermented milks produced with Lactobacillus casei. J Dairy Sci 2017; 100:9495-9507. [PMID: 28964517 DOI: 10.3168/jds.2017-12970] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 08/10/2017] [Indexed: 01/24/2023]
Abstract
Our study assayed angiotensin-converting enzyme (ACE) inhibitory activity and fermentation characteristics of 41 food-originated Lactobacillus casei strains in fermented milk production. Twenty-two of the tested strains produced fermented milks with a high ACE inhibitory activity of over 60%. Two strains (IMAU10408 and IMAU20411) expressing the highest ACE inhibitory activity were selected for further characterization. The heat stability (pasteurization at 63°C for 30 min, 75°C for 25 s, and 85°C for 20 s) and resistance to gastrointestinal proteases (pepsin, trypsinase, and sequential pepsin/trypsinase treatments) of the ACE inhibitory activity in the fermented milks produced with IMAU10408 and IMAU20411 were determined. Interestingly, such activity increased significantly after the heat or protease treatment. Because of the shorter milk coagulation time of L. casei IMAU20411 (vs. IMAU10408), it was selected for optimization experiments for ACE inhibitory activity production. Our results show that fermentation temperature of 37°C, inoculum density of 1 × 106 cfu/g, and fermentation time of 12 h were optimal for maximizing ACE inhibitory activity. Finally, the metabolite profiles of L. casei IMAU20411 after 2 and 42 h of milk fermentation were analyzed by ultra-HPLC electron spray ionization coupled with time-of-flight mass spectrometry. Nine differential abundant metabolites were identified, and 2 of them showed a strong and positive correlation with fermented milk ACE inhibitory activity. To conclude, we have identified a novel ACE inhibitory L. casei strain, which has potential for use as a probiotic in fermented milk production.
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Affiliation(s)
- Changkun Li
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China
| | - Lai-Yu Kwok
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China
| | - Zhihui Mi
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China
| | - Jinnima Bala
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China
| | - Jiangang Xue
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China
| | - Jie Yang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China
| | - Yuzhu Ma
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China.
| | - Yongfu Chen
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education P. R. C., Huhhot 010018, P. R. China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture P. R. C., Inner Mongolia Agricultural University, Huhhot 010018, P. R. China.
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Daskaya-Dikmen C, Yucetepe A, Karbancioglu-Guler F, Daskaya H, Ozcelik B. Angiotensin-I-Converting Enzyme (ACE)-Inhibitory Peptides from Plants. Nutrients 2017; 9:E316. [PMID: 28333109 PMCID: PMC5409655 DOI: 10.3390/nu9040316] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/07/2017] [Accepted: 03/13/2017] [Indexed: 02/04/2023] Open
Abstract
Hypertension is an important factor in cardiovascular diseases. Angiotensin-I-converting enzyme (ACE) inhibitors like synthetic drugs are widely used to control hypertension. ACE-inhibitory peptides from food origins could be a good alternative to synthetic drugs. A number of plant-based peptides have been investigated for their potential ACE inhibitor activities by using in vitro and in vivo assays. These plant-based peptides can be obtained by solvent extraction, enzymatic hydrolysis with or without novel food processing methods, and fermentation. ACE-inhibitory activities of peptides can be affected by their structural characteristics such as chain length, composition and sequence. ACE-inhibitory peptides should have gastrointestinal stability and reach the cardiovascular system to show their bioactivity. This paper reviews the current literature on plant-derived ACE-inhibitory peptides including their sources, production and structure, as well as their activity by in vitro and in vivo studies and their bioavailability.
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Affiliation(s)
- Ceren Daskaya-Dikmen
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Aysun Yucetepe
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Funda Karbancioglu-Guler
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
| | - Hayrettin Daskaya
- Department of Anesthesia and Reanimation, Bezmialem Vakif University Medical Faculty, Istanbul 34093, Turkey.
| | - Beraat Ozcelik
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
- BIOACTIVE Research & Innovation Food Manufacturing Industry Trade LTD Co., Maslak, Istanbul 34469, Turkey.
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Parashar A, Sachin Kedare P, Alex SA, Chandrasekaran N, Mukherjee A. A novel enzyme-mediated gold nanoparticle synthesis and its application for in situdetection of horseradish peroxidase inhibitor phenylhydrazine. NEW J CHEM 2017; 41:15079-15086. [DOI: 10.1039/c7nj03783j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Biocatalyzed gold nanoparticle synthesis for thein situdetection of horseradish peroxidase inhibitor (phenylhydrazine) has been demonstrated.
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Affiliation(s)
| | | | - Sruthi Ann Alex
- Centre for Nanobiotechnology, VIT University
- Vellore 632014
- India
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Santiago-López L, Hernández-Mendoza A, Vallejo-Cordoba B, Mata-Haro V, González-Córdova AF. Food-derived immunomodulatory peptides. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:3631-3641. [PMID: 26940008 DOI: 10.1002/jsfa.7697] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/25/2016] [Accepted: 02/27/2016] [Indexed: 06/05/2023]
Abstract
Food proteins contain specific amino acid sequences within their structures that may positively impact bodily functions and have multiple immunomodulatory effects. The functional properties of these specific sequences, also referred to as bioactive peptides, are revealed only after the degradation of native proteins during digestion processes. Currently, milk proteins have been the most explored source of bioactive peptides, which presents an interesting opportunity for the dairy industry. However, plant- and animal-derived proteins have also been shown to be important sources of bioactive peptides. This review summarizes the in vitro and in vivo evidence of the role of various food proteins as sources of immunomodulatory peptides and discusses the possible pathways involving these properties. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Lourdes Santiago-López
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo, AC (CIAD), Carretera a La Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
| | - Adrián Hernández-Mendoza
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo, AC (CIAD), Carretera a La Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
| | - Belinda Vallejo-Cordoba
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo, AC (CIAD), Carretera a La Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
| | - Verónica Mata-Haro
- Laboratorio de Microbiología e Inmunología, Centro de Investigación en Alimentación y Desarrollo, AC (CIAD), Carretera a La Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
| | - Aarón F González-Córdova
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo, AC (CIAD), Carretera a La Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
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Tidona F, Criscione A, Guastella AM, Zuccaro A, Bordonaro S, Marletta D. Bioactive peptides in dairy products. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2009.315] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Cape hake protein hydrolysates prepared from alkaline solubilised proteins pre-treated with citric acid and calcium ions: Functional properties and ACE inhibitory activity. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Gandhi A, Cui Y, Zhou M, Shah NP. Effect of KCl substitution on bacterial viability of Escherichia coli (ATCC 25922) and selected probiotics. J Dairy Sci 2014; 97:5939-51. [DOI: 10.3168/jds.2013-7681] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 06/14/2014] [Indexed: 11/19/2022]
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35
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Gandhi A, Shah NP. Cell growth and proteolytic activity of Lactobacillus acidophilus, Lactobacillus helveticus, Lactobacillus delbrueckii ssp. bulgaricus, and Streptococcus thermophilus in milk as affected by supplementation with peptide fractions. Int J Food Sci Nutr 2014; 65:937-41. [PMID: 25095898 DOI: 10.3109/09637486.2014.945154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The present investigation examined the effects of supplementation of milk peptide fractions produced by enzymatic hydrolysis on the fermentation of reconstituted skim milk (RSM). Changes in pH, cell growth, proteolytic activity, and angiotensin-converting enzyme (ACE)-inhibitory activity were monitored during fermentation of RSM by pure cultures of Lactobacillus acidophilus, Lactobacillus helveticus, Lactobacillus delbrueckii ssp. bulgaricus, and Streptococcus thermophilus. The study showed that supplementation with peptide fractions of different molecular weights did not significantly affect the bacterial growth in RSM. All bacteria showed an increased proteolytic activity in RSM supplemented with large peptides (>10 kDa), and L. helveticus in general exhibited the highest proteolytic activity among the bacteria studied. The ACE-inhibitory activity was observed to be the maximum in RSM supplemented with larger peptides (>10 kDa) for all bacteria. The results suggest that proteolysis by bacteria leads to increased production of ACE-inhibitory peptides compared to the supplemented peptides produced by enzymatic hydrolysis.
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Affiliation(s)
- Akanksha Gandhi
- Food and Nutritional Science, School of Biological Sciences, The University of Hong Kong , Hong Kong
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36
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Impact of microbial cultures on proteolysis and release of bioactive peptides in fermented milk. Food Microbiol 2014; 42:117-21. [PMID: 24929726 DOI: 10.1016/j.fm.2014.03.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 02/28/2014] [Accepted: 03/06/2014] [Indexed: 11/22/2022]
Abstract
This study aimed at evaluating co-cultures of selected microorganisms for their proteolytic activity and capability to produce fermented milk enriched with ACE-inhibitory (ACEI) peptides. Selected yeasts (Torulaspora delbruekii KL66A, Galactomyces geotrichum KL20B, Pichia kudriavzevii KL84A and Kluyveromyces marxianus KL26A) and lactic acid bacteria strains (Lactobacillus plantarum LAT03, Lb. plantarum KLAT01 and the not virulent Enterococcus faecalis KE06) were screened as single cultures for their capacity of releasing ACEI peptides without producing bitter taste. Three strains cultures (yeast, Lb. plantarum and E. faecalis) were performed to evaluate the combined impact on microbial growth, lactic acid production, citric acid consumption, proteolysis, ACEI activity, and bitter taste after 36 h of fermentation at 28 °C. While G. geotrichum KL20B showed a strong stimulating effect on Lb. plantarum strains and the production of peptides with ACEI activity, the presence of T. delbruekii KL26A in the cultures was deleterious both to ACEI activity and product taste. The most effective combination was P. kudriavzevii KL84A, Lb. plantarum LAT3, E. faecalis KL06, which showed the highest ACEI activity (IC50 = 30.63 ± 1.11 μg ml(-1)) and gave no bitter taste for 7 days at 6 °C. Our results highlight the importance of choosing the strains combination carefully, to obtain a high yield of ACEI activity without bitter taste.
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Effects of salt concentration and pH on structural and functional properties of Lactobacillus acidophilus: FT-IR spectroscopic analysis. Int J Food Microbiol 2014; 173:41-7. [DOI: 10.1016/j.ijfoodmicro.2013.12.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 12/17/2013] [Indexed: 11/18/2022]
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Jakubczyk A, Karaś M, Baraniak B, Pietrzak M. The impact of fermentation and in vitro digestion on formation angiotensin converting enzyme (ACE) inhibitory peptides from pea proteins. Food Chem 2013; 141:3774-80. [PMID: 23993548 DOI: 10.1016/j.foodchem.2013.06.095] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/08/2013] [Accepted: 06/20/2013] [Indexed: 01/11/2023]
Abstract
Pea seeds were fermented by Lactobacillus plantarum 299v in monoculture under different time and temperature conditions and the fermented products were digested in vitro under gastrointestinal conditions. After fermentation and digestion ACE inhibitory activity was determined. In all samples after fermentation no ACE inhibitory activity was noted. Potentially antihypertensive peptides were released during in vitro digestion. The highest DH (68.62%) were noted for control sample, although the lowest IC50 value (0.19 mg/ml) was determined for product after 7 days fermentation at 22 °C. The hydrolysate characterised by the highest ACE inhibitory activity was separated on Sephadex G10 and two peptides fractions were obtained. The highest ACE inhibitory activity (IC50=64.04 μg/ml) for the first fraction was noted. This fraction was separated by HPLC and identified by LC-MS/MS and the sequence of peptide derived from pea proteins was determined as KEDDEEEEQGEEE.
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Affiliation(s)
- Anna Jakubczyk
- Department of Biochemistry and Food Chemistry, University of Life Sciences, ul. Skromna 8, 20-704 Lublin, Poland.
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The impact of milk proteins and peptides on blood pressure and vascular function: a review of evidence from human intervention studies. Nutr Res Rev 2013; 26:177-90. [PMID: 24135454 DOI: 10.1017/s0954422413000139] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CVD are the leading cause of death worldwide. Hypertension, a major controllable risk factor of CVD, is intimately associated with vascular dysfunction, a defect which is also now recognised to be a major, modifiable risk factor for the development of CVD. The purpose of the present review was to critically evaluate the evidence for the effects of milk proteins and their associated peptides on blood pressure (BP) and vascular dysfunction. After a detailed literature search, the number of human trials evaluating the antihypertensive effects of casein-derived peptides (excluding isoleucine-proline-proline and valine-proline-proline) was found to be limited; the studies were preliminary with substantial methodological limitations. Likewise, the data from human trials that examined the effects of whey protein and peptides were also scarce and inconsistent. To date, only one study has conducted a comparative investigation on the relative effects of the two main intact milk proteins on BP and vascular function. While both milk proteins were shown to reduce BP, only whey protein improved measures of arterial stiffness. In contrast, a growing number of human trials have produced evidence to support beneficial effects of both milk proteins and peptides on vascular health. However, comparison of the relative outcomes from these trials is difficult owing to variation in the forms of assessment and measures of vascular function. In conclusion, there is an accumulating body of evidence to support positive effects of milk proteins in improving and/or maintaining cardiovascular health. However, the variable quality of the studies that produced this evidence, and the lack of robust, randomised controlled intervention trials, undermines the formulation of firm conclusions on the potential benefits of milk proteins and peptides on vascular health.
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Beermann C, Hartung J. Physiological properties of milk ingredients released by fermentation. Food Funct 2013; 4:185-99. [PMID: 23111492 DOI: 10.1039/c2fo30153a] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The demand for health-promoting food ingredients rises within an increasing market worldwide. Different milks fermented with bacteria, yeasts, moulds or enzymes from animal, plant and microbial sources offer a broad range of possibilities to cover different health aspects with new bioactive components. By the fermentation process interesting ingredients are enriched and released from the matrix, like lactoferrin, micro-nutrients, CLA and sphingolipids or synthesized, such as exo-polysaccharides and bioactive peptides. In particular, milk derived bioactive peptides exert several important health-promoting activities, such as anti-hypertensive, anti-microbial, anti-oxidative, immune-modulatory, opioid and mineral-binding properties. Milk-fermentation processes with probiotic bacteria synergistically combine health supporting bacterial and milk ingredient aspects which include new therapeutic solutions concerning hypercholesterolemia, carcinogenic intoxications, treatment of diarrhea, reduction of intestine pathogens, and supporting natural immune defense. Especially, milk-proteins and associated bioactive peptides released during microbial or enzymatic fermentation of milk offer a broad spectrum of new functional properties, for instance anti-hypertensive, anti-microbial, anti-oxidative, immuno-modulatory, opioid and mineral-binding properties. This review aimed at discussing recent research activities on physiological purposes and technical process aspects of functional components from fermented milk with a specific focus on biofunctional peptides released from fermented milk proteins.
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Medina-Godoy S, Rodríguez-Yáñez SK, Bobadilla NA, Pérez-Villalva R, Valdez-Ortiz R, Hong E, Luna-Suárez S, Paredes-López O, Valdez-Ortiz A. Antihypertensive activity of AMC3, an engineered 11S amaranth globulin expressed in Escherichia coli, in spontaneously hypertensive rats. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Griffiths MW, Tellez AM. Lactobacillus helveticus: the proteolytic system. Front Microbiol 2013; 4:30. [PMID: 23467265 PMCID: PMC3587842 DOI: 10.3389/fmicb.2013.00030] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 02/04/2013] [Indexed: 11/13/2022] Open
Abstract
Lactobacillus helveticus is one of the species of lactic acid bacteria (LAB) most commonly used in the production of fermented milk beverages and some types of hard cheese. The versatile nature of this bacterium is based on its highly efficient proteolytic system consisting of cell-envelope proteinases (CEPs), transport system and intracellular peptidases. Besides use of L. helveticus in cheese processing, the production of fermented milk preparations with health promoting properties has become an important industrial application. Studies have shown that fermented dairy products are able to decrease blood pressure, stimulate the immune system, promote calcium absorption, and exert an anti-virulent effect against pathogens. These beneficial effects are produced by a variety of peptides released during the hydrolysis of milk proteins by the proteolytic system of L. helveticus, which provides the bacterium with its nutritional requirements for growth. In recent years, studies have focused on understanding the factors that affect the kinetics of milk protein hydrolysis by specific strains and have concentrated on the effect of pH, temperature, growth phase, and matrix composition on the bacterial enzymatic system. This review focuses on the role of the proteolytic system of L. helveticus in the production of bioactive compounds formed during fermentation of dairy products. Taking advantage of the powerful proteolytic system of this bacterium opens up future opportunities to search for novel food-derived compounds with potential health promoting properties.
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Affiliation(s)
- M. W. Griffiths
- Department of Food Science, Canadian Research Institute for Food Safety, University of GuelphGuelph, ON, Canada
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Kancabaş A, Karakaya S. Angiotensin-converting enzyme (ACE)-inhibitory activity of boza, a traditional fermented beverage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:641-645. [PMID: 23001958 DOI: 10.1002/jsfa.5883] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 12/23/2011] [Accepted: 08/07/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND In this study the angiotensin-converting enzyme (ACE)-inhibitory activity of boza and protein fractions of boza separated according to molecular weight was determined. In addition, the effect of in vitro digestion on ACE-inhibitory activity was investigated. RESULTS The protein content, ACE-inhibitory activity and IC(50) value of boza were 1.0896 ± 0.08%, 76.76 ± 14.93% and 7.2 ± 0.28 µg protein mL(-1) respectively. The protein hydrolysate was separated into three fractions according to molecular weight (MW), i.e. MW < 5000 Da, 5000 < MW < 10 000 Da and 10 000 < MW < 20 000 Da. The lowest IC(50) value (0.268 ± 0.07 µg protein mL(-1)) was found for the fraction with 5000 < MW < 10 000 Da (P < 0.05). After in vitro digestion the ACE-inhibitory activities of stomach and intestine dialysates were almost the same (P > 0.05). The IC(50) value of stomach digest was determined as 2.06 ± 0.32 (µg protein mL(-1)). However, the IC(50) value of intestine digest could not be determined, because all dialysates with different protein concentrations displayed ACE-inhibitory activity greater than 50%. CONCLUSION The findings indicate that boza, protein hydrolysate, fractionated hydrolysates and dialysates obtained after in vitro digestion contain bioactive compounds with different ACE-inhibitory activities. Based on these results, boza can be considered as a good source of ACE-inhibitory peptides.
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Affiliation(s)
- Aslı Kancabaş
- Instıtute of Natural and Applied Sciences, Ege University, İzmir, Turkey
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ACE inhibitory peptides and antioxidant peptides derived from in vitro digestion hydrolysate of hen egg white lysozyme. Food Chem 2012; 135:1245-52. [DOI: 10.1016/j.foodchem.2012.05.059] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 04/12/2012] [Accepted: 05/11/2012] [Indexed: 11/22/2022]
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Qureshi TM, Vegarud GE, Abrahamsen RK, Skeie S. Angiotensin I-converting enzyme-inhibitory activity of the Norwegian autochthonous cheeses Gamalost and Norvegia after in vitro human gastrointestinal digestion. J Dairy Sci 2012. [PMID: 23200480 DOI: 10.3168/jds.2012-5993] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The angiotensin I-converting enzyme (ACE) inhibitory activity of Gamalost cheese, its pH 4.6-soluble fraction, and Norvegia cheese was monitored before and after digestion with human gastric and duodenal juices. Both Gamalost and Norvegia cheeses showed an increased ACE-inhibitory activity during gastrointestinal digestion. However, only Norvegia showed pronounced increased activity after duodenal digestion. More peptides were detected in digested Gamalost compared with digested Norvegia. Most of the peptides in Gamalost were derived from β-casein (CN), some originated from α(s1)-CN, and only a very few originated from α(s2)-CN and κ-CN. In general, the number of peptides increased during gastrointestinal digestion, whereas some peptides were further degraded and disappeared; however, surprisingly, a few peptides remained stable. The aromatic amino acids, such as Tyr, Phe, and Trp; the positively charged amino acids (Arg and Lys); and Leu increased after simulated gastrointestinal digestion of Gamalost and Norvegia. After in vitro gastrointestinal digestion, both Gamalost and Norvegia showed high ACE-inhibitory activity, which may contribute in lowering of mild hypertension.
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Affiliation(s)
- T M Qureshi
- Department of Chemistry, Biotechnology and Food Sciences, Norwegian University of Life Sciences, Chr. Magnus Falsens vei 1, 1432 Ås, Norway
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Abstract
Lactobacillus helveticus is an important industrial thermophilic starter that is predominantly employed in the fermentation of milk for the manufacture of several cheeses. In addition to its technological importance, a growing body of scientific evidence shows that strains belonging to the L. helveticus species have health-promoting properties. In this review, we synthesize the results of numerous primary literature papers concerning the ability of L. helveticus strains to positively influence human health. Several in vitro studies showed that L. helveticus possesses many common probiotic properties, such as the ability to survive gastrointestinal transit, adhere to epithelial cells, and antagonize pathogens. In vivo studies in murine models showed that L. helveticus could prevent gastrointestinal infections, enhance protection against pathogens, modulate host immune responses, and affect the composition of the intestinal microbiota. Interventional studies and clinical trials have also demonstrated a number of health-promoting properties of L. helveticus. Finally, several studies suggested that specific enzymatic activities of L. helveticus could indirectly benefit the human host by enhancing the bioavailability of nutrients, removing allergens and other undesired molecules from food, and producing bioactive peptides through the digestion of food proteins. In conclusion, this review demonstrates that in light of the scientific literature presented, L. helveticus can be included among the bacterial species that are generally considered to be probiotic.
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Affiliation(s)
- Valentina Taverniti
- Division of Food Microbiology and Bioprocesses, Department of Food Environmental and Nutritional Sciences, Università degli Studi di Milano Milan, Italy
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Pihlanto A, Johansson T, Mäkinen S. Inhibition of angiotensin I-converting enzyme and lipid peroxidation by fermented rapeseed and flaxseed meal. Eng Life Sci 2012. [DOI: 10.1002/elsc.201100137] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Hang M, Zhao XH. Fermentation time and ethanol/water-based solvent system impactedin vitroACE-inhibitory activity of the extract of Mao-tofu fermented byMucorspp. CYTA - JOURNAL OF FOOD 2012. [DOI: 10.1080/19476337.2011.601428] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hernández-Ledesma B, del Mar Contreras M, Recio I. Antihypertensive peptides: production, bioavailability and incorporation into foods. Adv Colloid Interface Sci 2011; 165:23-35. [PMID: 21185549 DOI: 10.1016/j.cis.2010.11.001] [Citation(s) in RCA: 312] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 11/25/2010] [Accepted: 11/27/2010] [Indexed: 02/05/2023]
Abstract
Bioactive food peptides are encrypted within the sequence of food proteins but can be released during food processing (by enzymatic hydrolysis or fermentation) or during gastrointestinal transit. Among bioactive food peptides, those with antihypertensive activity are receiving special attention due to the high prevalence of hypertension in the Western countries and its role in cardiovascular diseases. This paper reviews the current literature on antihypertensive food peptides, focusing on the main methodologies for their production, such as enzymatic hydrolysis, fermentation and the use of recombinant bacteria. This paper also describes the structure/activity relationship of angiotensin-converting enzyme (ACE)-inhibitory peptides, as well as their bioavailability, physiological effects demonstrated by both in vitro and in vivo assays, and the contribution of mechanisms of action other than ACE inhibition. Finally, current reported strategies for incorporation of antihypertensive peptides into foods and their effects on both availability and activity are revised in this manuscript.
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Tavares T, Contreras MDM, Amorim M, Pintado M, Recio I, Malcata FX. Novel whey-derived peptides with inhibitory effect against angiotensin-converting enzyme: in vitro effect and stability to gastrointestinal enzymes. Peptides 2011; 32:1013-9. [PMID: 21335046 DOI: 10.1016/j.peptides.2011.02.005] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 02/07/2011] [Accepted: 02/09/2011] [Indexed: 11/24/2022]
Abstract
Whey protein concentrate (WPC) was subjected to enzymatic hydrolysis by proteases from the flowers of Cynara cardunculus, and the resulting angiotensin-converting enzyme (ACE)-inhibitory effect was monitored. The whole WPC hydrolysate exhibited an IC(50) value of 52.9 ± 2.9 μg/mL, whereas the associated peptide fraction with molecular weight below 3 kDa scored 23.6 ± 1.1 μg/mL. The latter fraction was submitted to RP-HPLC, and 6 fractions were resolved that exhibited ACE-inhibitory effects. Among the various peptides found, a total of 14 were identified via sequencing with an ion-trap mass spectrometer. Eleven of these peptides were synthesized de novo--to validate their ACE-inhibitory effect, and also to ascertain their stability when exposed to simulated gastrointestinal digestion. Among them, three novel, highly potent peptides were found, corresponding to α-lactalbumin f(16-26)--with the sequence KGYGGVSLPEW, α-lactalbumin f(97-104) with DKVGINYW, and β-lactoglobulin f(33-42) with DAQSAPLRVY; their IC(50) values were as low as 0.80 ± 0.1, 25.2 ± 1.0 and 13.0 ± 1.0 μg/mL, respectively. None of them remained stable in the presence of gastrointestinal enzymes: they were partially, or even totally hydrolyzed to smaller peptides--yet the observed ACE-inhibitory effects were not severely affected for two of those peptides.
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Affiliation(s)
- Tânia Tavares
- CBQF/Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal
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