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Lemus-Conejo A, Villanueva-Lazo A, Martin ME, Millan F, Millan-Linares MC. Sacha Inchi ( Plukenetia volubilis L.) Protein Hydrolysate as a New Ingredient of Functional Foods. Foods 2024; 13:2045. [PMID: 38998552 PMCID: PMC11241537 DOI: 10.3390/foods13132045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
Sacha inchi (Plukenetia volubilis L.) is an under-exploited crop with great potential due to its nutritional and medicinal characteristics. A Sacha inchi protein isolate (SII), obtained from defatted Sacha inchi flour (SIF), was hydrolyzed by Bioprotease LA 660 under specific conditions. The hydrolysates were characterized chemically, and their digestibility and antioxidant capacity were evaluated by in vitro cell-free experiments to select the hydrolysate with major antioxidant activity. Sacha inchi protein hydrolysate at 20 min (SIH20B) was selected, and the anti-inflammatory capacity was evaluated by RT-qPCR and ELISA techniques, using two different doses in monocytes THP-1 stimulated with lipopolysaccharide (LPS). The results obtained showed that the in vitro administration of SIH20B down-regulated the TNF-α gene and reduced the release of this cytokine, whereas the anti-inflammatory cytokines IL-10 and IL-4 were up-regulated in LPS-stimulated monocytes and co-administrated with SIH20B. The peptides contained in SIH20B were identified, and the 20 more relatively abundant peptides with a mass by 1 kDa were subjected to in silico analysis to hypothesize those that could be responsible for the bioactivity reported in the hydrolysate. From the identified peptides, the peptides AAGALKKFL and LGVKFKGGL, among others, are proposed as the most biologically actives. In conclusion, SIH20B is a novel, natural source of high-value-added biopeptides that could be used as an ingredient in formulations of food or nutraceutical compounds.
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Affiliation(s)
- Ana Lemus-Conejo
- Foundation Centre for Research and Development of Functional Food-CIDAF, Avda del Conocimiento 37, 18100 Granade, Spain
| | - Alvaro Villanueva-Lazo
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
| | - Maria E Martin
- Department of Cell Biology, Faculty of Biology, University of Seville, Av. Reina Mercedes s/n, 41012 Seville, Spain
| | - Francisco Millan
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
| | - Maria C Millan-Linares
- Food Protein and Immunonutrition Group, Department of Food and Health, Instituto de la Grasa, CSIC, Campus Universitario Pablo de Olavide, Edificio 46, Ctra. de Utrera, Km. 1, 41013 Seville, Spain
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Xiao Y, Wang J, Zhang Y, Zhang T, Qi X, Hou L, Ma Z, Xu F. Hepatic polypeptide nutrient solution improves high-cholesterol diet-induced rats with nonalcoholic fatty liver disease by activating AMP-activated protein kinase signaling pathway. Food Sci Nutr 2024; 12:3225-3236. [PMID: 38726419 PMCID: PMC11077238 DOI: 10.1002/fsn3.3990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 05/12/2024] Open
Abstract
Hepatic polypeptide nutrient solution (HP) is a mixture of hepatoprotective peptides derived from fresh porcine liver with various effects. However, the role and mechanisms of HP in nonalcoholic fatty liver disease (NAFLD) are still not well understood. We investigated the effects of HP NAFLD rats induced by high-cholesterol diet (HCD) and its underlying mechanisms. Rats were provided with HCD for 4 weeks and then received HP or metformin after 2 weeks of HCD feeding. The study found that HP reduced cholesterol and triglyceride levels in rats with NAFLD (all p < .05). Histopathological examination also showed that HP improved the liver lesions induced by the HCD diet. Furthermore, the oxidative stress and inflammatory responses of NAFLD rats treated with HP were also improved. In addition, it was discovered that HP triggered the activation of AMPK and decreased the expression of SREBP-1c and FAS while enhancing the expression of PPAR α and CPT-1 in liver. These findings indicated that HP might have therapeutic potential for NAFLD, possibly via activating AMPK signaling pathway.
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Affiliation(s)
- Yingying Xiao
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangHebeiChina
| | - Jianan Wang
- Graduate SchoolHebei University of Chinese MedicineShijiazhuangHebeiChina
| | - Ying Zhang
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangHebeiChina
| | - Ting Zhang
- Experimental CenterHebei University of Chinese MedicineShijiazhuangHebeiChina
| | - Xingzhong Qi
- Hebei Zhitong Biological Pharmaceutical Co., Ltd.BaodingHebeiChina
| | - Lei Hou
- Hebei Zhitong Biological Pharmaceutical Co., Ltd.BaodingHebeiChina
| | - Zhihong Ma
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangHebeiChina
- Hebei International Cooperation Center for Ion Channel Function and Innovative Traditional Chinese MedicineShijiazhuangHebeiChina
- Hebei Key Laboratory of Integrative Medicine on Liver‐Kidney PatternsShijiazhuangHebeiChina
| | - Feng Xu
- Hebei Zhitong Biological Pharmaceutical Co., Ltd.BaodingHebeiChina
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Advances in Natural Antioxidants for Food Improvement. Antioxidants (Basel) 2022; 11:antiox11091825. [PMID: 36139899 PMCID: PMC9495579 DOI: 10.3390/antiox11091825] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 09/13/2022] [Indexed: 11/23/2022] Open
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