1
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Yin H, Zhu J, Zhong Y, Wang D, Deng Y. Kinetic and thermodynamic-based studies on the interaction mechanism of novel R. roxburghii seed peptides against pancreatic lipase and cholesterol esterase. Food Chem 2024; 447:139006. [PMID: 38492305 DOI: 10.1016/j.foodchem.2024.139006] [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: 11/25/2023] [Revised: 03/02/2024] [Accepted: 03/09/2024] [Indexed: 03/18/2024]
Abstract
Pancreatic lipase (PL) and cholesterol esterase (CE) are vital digestive enzymes that regulate lipid digestion. Three bioactive peptides (LFCMH, RIPAGSPF, YFRPR), possessing enzyme inhibitory activities, were identified in the seed proteins of R. roxburghii. It is hypothesized that these peptides could inhibit the activities of these enzymes by binding to their active sites or altering their conformation. The results showed that LFCMH exhibited superior inhibitory activity against these enzymes compared to the other peptides. The inhibition mechanisms of the three peptides were identified as either competitive or mixed, according to inhibition models. Further studies have shown that peptides could bind to the active sites of enzymes, thus affecting their spatial conformation and restricting substrate entry into the active site. Molecular simulation further proved that hydrogen bonds and hydrophobic interactions played a vital role in the binding of peptides to enzymes. This study enriches our understanding of interaction mechanisms of peptides on PL and CE.
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Affiliation(s)
- Hao Yin
- Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Shanghai Jiao Tong University Yunnan (Dali) Research Institute, Dali, Yunnan 671000, China
| | - Jiangxiong Zhu
- Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yu Zhong
- Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Danfeng Wang
- Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yun Deng
- Department of Food Science & Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Shanghai Jiao Tong University Yunnan (Dali) Research Institute, Dali, Yunnan 671000, China.
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2
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Kumari S, Pandey A, Soni A, Mahala A, Kumar A, Dey K. Assessment of functional efficacy of sheep plasma protein hydrolysates and their utilization in mutton sausage. Meat Sci 2024; 212:109469. [PMID: 38428152 DOI: 10.1016/j.meatsci.2024.109469] [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: 09/12/2023] [Revised: 01/02/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
The present study examines the bioactive potential of sheep plasma protein hydrolysates (SPPH) produced by in-vitro gastrointestinal digestion as antioxidants, antimicrobials, anti-obesity agents, and inhibitors of lipid oxidation in sausage to address the oxidative stability and shelf-life issues of mutton. The antioxidant and antimicrobial activities, indicate a positive relationship between the degree of hydrolysis and digestion duration. The study finds that SPPH has a potent inhibitory effect on pancreatic lipase and cholesterol esterase. It has higher oil holding capacity than sheep plasma protein, observed at one hour of hydrolysis time. SPPH exhibit an improved behavior in foaming properties along alkaline pH and digestion time while display lower emulsifying activity and stability with hydrolysis advancement. The SPPH act as a natural preservative in developing functional mutton sausage by inhibiting lipid-oxidation. This study showed that the recovery of SPPH can be a cost-effective and sustainable strategy for generating available ingredients for enhanced shelf-life of meat products.
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Affiliation(s)
- Sarita Kumari
- Department of Livestock Products Technology, Post- Graduate Institute of Veterinary Education & Research, Rajasthan University of Veterinary and Animal Science, Rajasthan 334001, India
| | - Anurag Pandey
- Department of Livestock Products Technology, Post- Graduate Institute of Veterinary Education & Research, Rajasthan University of Veterinary and Animal Science, Rajasthan 334001, India.
| | - Arvind Soni
- Section of Livestock Products Technology, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
| | - Anurag Mahala
- Division of Animal Genetics Breeding, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
| | - Arun Kumar
- Division of Animal Genetics Breeding, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan 304501, India
| | - Kushankur Dey
- Centre for Food & Agri-business Management, Indian Institute of Management, Lucknow, Uttar Pradesh 226013, India.
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3
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Huang F, Dai Q, Zheng K, Ma Q, Liu Y, Jiang S, Jiang W, Yan X. Exploring the inhibitory potential of KPHs-AL-derived GLLF peptide on pancreatic lipase and cholesterol esterase activities. Food Chem 2024; 439:138108. [PMID: 38061297 DOI: 10.1016/j.foodchem.2023.138108] [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: 09/15/2023] [Revised: 11/25/2023] [Accepted: 11/26/2023] [Indexed: 01/10/2024]
Abstract
The effective modulation of pancreatic lipase and cholesterol esterase activities proves critical in maintaining circulatory triglycerides and cholesterol levels within physiological boundaries. In this study, peptides derived from KPHs-AL, produced through the enzymatic hydrolysis of skipjack tuna dark muscle using alkaline protease, have a specific inhibitory effect on pancreatic lipase and cholesterol esterase. It is hypothesized that these peptides target and modulate the activities of enzymes by inducing conformational changes within their binding pockets, potentially impacting the catalytic functions of both pancreatic lipase and cholesterol esterase. Results revealed these peptides including AINDPFIDL, FLGM, GLLF and WGPL, were found to nestle into the binding site groove of pancreatic lipase and cholesterol esterase. Among these, GLLF stood out, demonstrating potent inhibition with IC50 values of 0.1891 mg/mL and 0.2534 mg/mL for pancreatic lipase and cholesterol esterase, respectively. The kinetics studies suggested that GLLF competed effectively with substrates for the enzyme active sites. Spectroscopic analyses, including ultraviolet-visible, fluorescence quenching, and circular dichroism, indicated that GLLF binding induced conformational changes within the enzymes, likely through hydrogen bond formation and hydrophobic interactions, thereby increasing structural flexibility. Molecular docking and molecular dynamics simulations supported these findings, showing GLLF's stable interaction with vital active site residues. These findings position GLLF as a potent inhibitor of key digestive enzymes, offering insights into its role in regulating lipid metabolism and highlighting its potential as functional ingredient.
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Affiliation(s)
- Fangfang Huang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China; Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China; Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Qingfei Dai
- Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China
| | - Kewei Zheng
- Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China
| | - Qingbao Ma
- Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China
| | - Yu Liu
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China
| | - Shuoqi Jiang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Li-Hu Road, Bin-Hu District, Wuxi, Jiangsu, China
| | - Wei Jiang
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China; Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China.
| | - Xiaojun Yan
- Key Laboratory of Marine Biotechnology of Zhejiang Province, School of Marine Sciences, Ningbo University, Ningbo, China; Institute of Innovation and Application, Zhejiang Ocean University, Zhoushan, China; Key Laboratory of Key Technical Factors in Zhejiang Seafood Health Hazards, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
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4
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Wang Z, Chen B, Zhao X, Li S, Fang Z, Liu Y, Zeng Z, Li C, Chen H. Probing the binding mechanism of tea polyphenols from different processing methods to anti-obesity and TMAO production-related enzymes through in silico molecular docking. Food Chem X 2024; 21:101053. [PMID: 38187945 PMCID: PMC10767370 DOI: 10.1016/j.fochx.2023.101053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/22/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024] Open
Abstract
Tea polyphenols possess anti-obesity properties and reduce TMAO levels. However, the variability of tea polyphenols under different processing methods and their preventive efficacy requires further exploration. This study systematically evaluated the antioxidant, hypoglycemic, and hypolipotropic enzyme capacities of GT, YT and DT through UPLC-ESI-MS/MS analysis of catechin profiles. OPLS, correlation analysis, and molecular docking were employed to investigate the compounds and inhibitory mechanisms targeting hypoglycemic, hypolipidemic, and TMAO-producing enzymes. GT exhibited significantly lower IC50 values for biological activity and higher catechins contents compared to YT and DT (p < 0.05). Strong positive correlations were observed between EGCG, CG, and ECG and biological activities (r ≥ 7.4, p < 0.001). Molecular docking results highlighted the establishment of stable hydrogen bonds and hydrophobic interactions between EGCG, CG, ECG, and the receptor. These findings contribute novel insights into the mechanisms by which tea polyphenols prevent obesity and inhibit TMAO production.
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Affiliation(s)
- Zhuo Wang
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Bin Chen
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Xinyi Zhao
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Shanshan Li
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Zhengfeng Fang
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Yuntao Liu
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Zhen Zeng
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Cheng Li
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Hong Chen
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
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5
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Tu L, Zeng J, Bai X, Wu Z, Wu J, Xu S. Nanoliposome-Mediated Encapsulation of Chlorella Oil for the Development of a Controlled-Release Lipid-Lowering Formulation. Foods 2024; 13:158. [PMID: 38201186 PMCID: PMC10779123 DOI: 10.3390/foods13010158] [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: 11/23/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Chlorella oil nanoliposomes (CO-NLP) were synthesized through ultrasonic injection with ethanol, and their physicochemical properties and hypolipidemic efficacy were systematically investigated. The results revealed that the mean particle size of CO-NLP was 86.90 nm and the encapsulation efficiency (EE) was 92.84%. Storage conditions at 4 °C were conducive to the stability of CO-NLP, maintaining an EE of approximately 90% even after 10 days of storage. The release profile of CO-NLP adhered more closely to the first-order kinetic model during in vitro assessments, exhibiting a slower release rate compared to free microalgae oil. In simulated in vitro digestion experiments, lipolytic reactions of CO-NLP were observed during intestinal digestion subsequent to nanoliposome administration. Notably, the inhibitory effect of CO-NLP on cholesterol esterase activity was measured at 85.42%. Additionally, the average fluorescence intensity of nematodes in the CO-NLP group was 52.17% lower than in the control group at a CO-NLP concentration of 500 μg/mL, which suggests a pronounced lipid-lowering effect of CO-NLP. Therefore, the CO-NLP exhibited characteristics of small and uniform particle size, elevated storage stability, gradual release during intestinal digestion, and a noteworthy hypolipidemic effect. These findings designate CO-NLP as a novel lipid-lowering active product, demonstrating potential for the development of functional foods.
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Affiliation(s)
- Lanlan Tu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (L.T.); (J.Z.); (X.B.); (Z.W.)
| | - Jihao Zeng
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (L.T.); (J.Z.); (X.B.); (Z.W.)
| | - Xue Bai
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (L.T.); (J.Z.); (X.B.); (Z.W.)
| | - Ziyun Wu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (L.T.); (J.Z.); (X.B.); (Z.W.)
| | - Jinhong Wu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (L.T.); (J.Z.); (X.B.); (Z.W.)
| | - Shannan Xu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
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6
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Pan F, Li X, Tuersuntuoheti T, Zhao L, Liu M, Fang X, Peng W, Tian W. Self-assembled condensed tannins supramolecular system can adsorb cholesterol micelles to promote cholesterol excretion. Int J Biol Macromol 2023; 253:126549. [PMID: 37659485 DOI: 10.1016/j.ijbiomac.2023.126549] [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: 06/24/2023] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/04/2023]
Abstract
In this study, the cholesterol (CH)-lowering behavioral mechanisms and drivers of condensed tannins (CTs) were revealed using a molecular aggregation theoretical model combined with in vitro experiments, as well as the CH-lowering effects of CTs validated based on animal experiments. Theoretical model results indicated that CTs can spontaneously aggregate to form supramolecular systems, can break CH micelles and form larger aggregates, a behavior driven by van der Waals forces and hydrogen bonds; DLS and TEM results confirmed that the presence of CH leads to a larger particle size of CTs and the formation of large aggregates; thermodynamic analysis and ITC revealed that the adsorption of CH by CTs is a spontaneous reaction driven by hydrogen bonds and hydrophobic forces; Animal experiments and fecal biochemical parameters further confirmed that the intake of CTs can reduce CH absorption and promotes CH excretion. Overall, this study reveals the CH-lowering behavioral mechanism of CTs from the perspective of molecular aggregation behavior.
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Affiliation(s)
- Fei Pan
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China
| | - Xiangxin Li
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China.
| | - Tuohetisayipu Tuersuntuoheti
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Lei Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Mengyao Liu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China
| | - Xiaoming Fang
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China
| | - Wenjun Peng
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China.
| | - Wenli Tian
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, People's Republic of China.
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7
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Ma S, Weng M, Yang T, Ge L, Yang K. Triterpenes and Pheophorbides from Camellia ptilosperma and Their Cytotoxicity, Photocytotoxicity, and Photodynamic Antibacterial Activity. Molecules 2023; 28:7058. [PMID: 37894536 PMCID: PMC10609551 DOI: 10.3390/molecules28207058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 09/30/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Phytochemical investigation of the leaves of Camellia ptilosperma S. Y. Liang et Q. D. Chen led to the isolation of ten undescribed compounds, including six new triterpenes (1-6) and four new pheophorbide-related compounds (7-10). Meanwhile, the cytotoxic activity of the six triterpenes against six cancer cell lines was evaluated by MTT assay. Compound 2 showed potent cytotoxicity toward HepG2 cells with an IC50 value of 2.57 μM. Compounds 4 and 5 exhibited cytotoxicity against MDA-MB231 cells, with IC50 values of 11.31 and 5.52 μM, respectively. Additionally, the cytotoxicity of four new pheophorbides against these cancer cells was evaluated both in the presence and absence of light treatment. Compound 7 exhibited exceptional photocytotoxicity against Hela, MCF-7, and A549 cells, with IC50 values of 0.43 μM, 0.28 μM, and 0.92 μM, respectively. Compound 10 demonstrated significant photodynamic cytotoxic activity against BEL-7402 and HepG2 cells with IC50 values of 0.77 μM and 0.33 μM, respectively. The photodynamic antibacterial activity of 7-10 was also tested for S. aureus, E. coli, K. pneumoniae, and P. aeruginosa under direct illumination. Compounds 8 and 10 exhibited sensitivity to E. coli and demonstrated a photodynamic antibacterial effect, with a MIC value of 0.625 μM.
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Affiliation(s)
- Siyuan Ma
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China;
| | - Mengling Weng
- Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture & Rural Affairs, Guangxi Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530004, China
| | - Ting Yang
- Guangxi Fangcheng Golden Camellia National Nature Reserve Management Center, Fangchenggang 538021, China
| | - Li Ge
- Medical College, Guangxi University, Nanning 530004, China
| | - Kedi Yang
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China;
- Medical College, Guangxi University, Nanning 530004, China
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Chen F, Lin L, Zhao M. Co-extraction of soy protein and polysaccharide with lipid-lowering activity: Characterization of functional property, nutritional property and colonic fermentation property through a metabolomics approach. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Pancreatic lipase inhibitory effects of peptides derived from sesame proteins: In silico and in vitro analyses. Int J Biol Macromol 2022; 222:1531-1537. [DOI: 10.1016/j.ijbiomac.2022.09.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022]
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10
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Assessment of the Hypoglycemic and Hypolipidemic Activity of Flavonoid-Rich Extract from Angelica keiskei. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196625. [PMID: 36235163 PMCID: PMC9571360 DOI: 10.3390/molecules27196625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 12/05/2022]
Abstract
Angelica keiskei contains a variety of bioactive compounds including chalcone, coumarin, and phytochemicals, endowing it with pharmacological effects such as lipid-lowering activity, antitumor activity, liver protection, and nerve protection. This study aims to study the hypoglycemic and hypolipidemic effects of the flavonoid-rich extract from Angelica keiskei (FEAK) in an effort to exploit new applications of FEAK and increase its commercial value. In this paper, flavonoid compounds in Angelica keiskei were extracted using 50% ethanol, and the contents of the flavonoid compounds were analyzed by UPLC-MS/MS. Then, the hypoglycemic and hypolipidemic activities of the FEAK were investigated through in vitro enzyme activity and cell experiments as well as establishing in vivo zebrafish and Caenorhabditis elegans (C. elegans) models. The UPLC-MS/MS results show that the major flavonoid compounds in the FEAK were aureusidin, xanthoangelol, kaempferol, luteolin, and quercetin. The inhibitory rates of the FEAK on the activity of α-amylase and cholesterol esterase were 57.13% and 72.11%, respectively. In cell lipid-lowering experiments, the FEAK significantly reduced the total cholesterol (TC) and total triglyceride (TG) levels in a dose-dependent manner, with 150 μg/mL of FEAK decreasing the intracellular levels of TC and TG by 33.86% and 27.89%, respectively. The fluorescence intensity of the FEAK group was 68.12% higher than that of the control group, indicating that the FEAK exhibited hypoglycemic effects. When the concentration of the FEAK reached 500 μg/mL, the hypoglycemic effect on zebrafish reached up to 57.7%, and the average fluorescence intensity of C. elegans in the FEAK group was 17% lower than that of the control group. The results indicate that the FEAK had hypoglycemic and hypolipidemic activities. The findings of this study provide theoretical references for the high-value utilization of Angelica keiskei and the development of natural functional food with hypoglycemic and hypolipidemic activities.
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11
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Liao J, Guo J, Niu Y, Fang T, Wang F, Fan Y. Flavonoids from Lycium barbarum leaves attenuate obesity through modulating glycolipid levels, oxidative stress, and gut bacterial composition in high-fat diet-fed mice. Front Nutr 2022; 9:972794. [PMID: 35967795 PMCID: PMC9366397 DOI: 10.3389/fnut.2022.972794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Traditional herbal therapy made from Lycium barbarum leaves has been said to be effective in treating metabolic diseases, while its exact processes are yet unknown. Natural flavonoids are considered as a secure and reliable method for treating obesity. We thus made an effort to investigate the processes by which flavonoids from L. barbarum leaves (LBLF) reduce obesity. To assess the effectiveness of the intervention following intragastric injection of various dosages of LBLF (50, 100, and 200 mg/kg⋅bw), obese model mice developed via a high-fat diet were utilized. Treatment for LBLF may decrease body weight gain, Lee’s index, serum lipids levels, oxidative stress levels, and hepatic lipids levels. It may also enhance fecal lipids excretion and improve glucose tolerance. Additionally, LBLF therapy significantly restored gut dysfunction brought on by a high-fat diet by boosting gut bacterial diversities and altering the composition of the gut bacterial community by elevating probiotics and reducing harmful bacteria.
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Affiliation(s)
- JiaLe Liao
- Department of Food Science and Technology, School of Food & Wine, Ningxia University, Yinchuan, China
| | - Jia Guo
- Department of Food Science and Technology, School of Food & Wine, Ningxia University, Yinchuan, China
| | - YinHong Niu
- Department of Food Science and Technology, School of Food & Wine, Ningxia University, Yinchuan, China
| | - Tian Fang
- Department of Food Science and Technology, School of Food & Wine, Ningxia University, Yinchuan, China
| | - FangZhou Wang
- Ningxia Red Power Goji Co., Ltd., Zhongwei, China.,Ningxia Engineering Research Center for Goji Biological Fermentation & Milling, Zhongwei, China
| | - YanLi Fan
- Department of Food Science and Technology, School of Food & Wine, Ningxia University, Yinchuan, China
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12
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Zhu W, Oteiza PI. Proanthocyanidins at the gastrointestinal tract: mechanisms involved in their capacity to mitigate obesity-associated metabolic disorders. Crit Rev Food Sci Nutr 2022; 64:220-240. [PMID: 35943169 DOI: 10.1080/10408398.2022.2105802] [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] [Indexed: 11/03/2022]
Abstract
The prevalence of overweight and obesity is continually increasing worldwide. Obesity is a major public health concern given the multiple associated comorbidities. Finding dietary approaches to prevent/mitigate these conditions is of critical relevance. Proanthocyanidins (PACs), oligomers or polymers of flavan-3-ols that are extensively distributed in nature, represent a major part of total dietary polyphenols. Although current evidence supports the capacity of PACs to mitigate obesity-associated comorbidities, the underlying mechanisms remain speculative due to the complexity of PACs' structure. Given their limited bioavailability, the major site of the biological actions of intact PACs is the gastrointestinal (GI) tract. This review discusses the actions of PACs at the GI tract which could underlie their anti-obesity effects. These mechanisms include: i) inhibition of digestive enzymes at the GI lumen, including pancreatic lipase, α-amylase, α-glucosidase; ii) modification of gut microbiota composition; iii) modulation of inflammation- and oxidative stress-triggered signaling pathways, e.g. NF-κB and MAPKs; iv) protection of the GI barrier integrity. Further understanding of the mechanisms and biological activities of PACs at the GI tract can contribute to develop nutritional and pharmacological strategies oriented to mitigate the serious comorbidities of obesity.
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Affiliation(s)
- Wei Zhu
- Department of Nutrition, University of California, Davis, California, USA
- Department of Environmental Toxicology, University of California, Davis, California, USA
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Patricia I Oteiza
- Department of Nutrition, University of California, Davis, California, USA
- Department of Environmental Toxicology, University of California, Davis, California, USA
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13
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Fioroto CKS, da Silva TBV, Castilho PA, Uber TM, Sá-Nakanishi AB, Seixas FAV, Peralta RM, Bracht A. Effects of Ilex paraguariensis beverages on in vivo triglyceride and starch absorption in mice. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Long X, Hu X, Xiang H, Chen S, Li L, Qi B, Li C, Liu S, Yang X. Structural characterization and hypolipidemic activity of Gracilaria lemaneiformis polysaccharide and its degradation products. Food Chem X 2022; 14:100314. [PMID: 35492254 PMCID: PMC9046617 DOI: 10.1016/j.fochx.2022.100314] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/24/2022] [Accepted: 04/18/2022] [Indexed: 12/26/2022] Open
Abstract
This research aimed to analyze structural characterization and hypolipidemic activity in vitro of G. lemaneiformis polysaccharide (GLP) and its degradation products. The results presented that the content of galacturonic acid declined and glucuronic acid level enhanced, average particle size decreased from 99.9 μm to 25.7 μm, and color brightness of polysaccharide strengthened after degraded by H2O2-Vc. There was no significant change in thermal stability of polysaccharide before and after degradation. It was observed in AFM analysis, polysaccharide changed to smaller, delicacy and dispersion after degradation. As seen in FT-IR, H2O2-Vc degradation never change the structure of polysaccharide. Polysaccharide and its degradation products showed a significant inhibition effect on pancreatic lipase and cholesterol esterase in a dose-dependent manner, which presented the mixed type of competitive and non-competitive for pancreatic lipase, and non-competitive for cholesterol esterase, respectively. The fluorescence quenching type was static on pancreatic lipase and dynamic on cholesterol esterase.
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Affiliation(s)
- Xiaoshan Long
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.,Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Xiao Hu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China.,Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Huan Xiang
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Shengjun Chen
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Laihao Li
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Bo Qi
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Chunsheng Li
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Shucheng Liu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Xianqing Yang
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China.,Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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15
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Benvenutti L, Zielinski AAF, Ferreira SRS. Pressurized aqueous solutions of deep eutectic solvent (DES): A green emergent extraction of anthocyanins from a Brazilian berry processing by-product. Food Chem X 2022; 13:100236. [PMID: 35498972 PMCID: PMC9040022 DOI: 10.1016/j.fochx.2022.100236] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 01/29/2023] Open
Abstract
PLE using DES aqueous solutions is an eco-friendly method for anthocyanin recovery. Pressurized DES solutions can be used to valorize the jaboticaba by-product. DES (ChCl:Pro and ChCl:Ma) solutions had yields 50% higher than conventional solvents. Recovered extracts showed antioxidant, anti-diabetic, and anti-obesity potential. Pressurized ChCl:Ma solution maintained the color and bioactivity of the extracts.
Deep eutectic solvents (DES) are emergent solvents with high extractability of bioactive compounds. Therefore, anthocyanin rich-fractions were recovered from jaboticaba peels by combining aqueous solutions of DES and pressurized liquid extraction (PLE). The extraction occurred at 10 MPa, 12 min, with conditions optimized through response surface methodology: 47% DES concentration, 90 °C, and 5.3 mL/min flow rate. PLE with different DES (choline chloride combined with propylene glycol or malic acid) solutions were compared to conventional solvents (water and acidified water) concerning yield, thermostability, antioxidant, anti-diabetic, and anti-obesity activities. DES solutions presented anthocyanin yields up to 50% higher than conventional solvents. ChCl:Ma, with the highest anthocyanin stability (Ea = 77.5 kJ.mol−1), was a promising solvent concerning color, anti-diabetic and anti-obesity potential. Environmental analysis by Green Certificate and EcoScale indicated PLE with DES solutions is a green and efficient approach to recover anthocyanin from jaboticaba peel, providing useful extracts.
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Affiliation(s)
- Laís Benvenutti
- Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, C.P. 476, 88040-900, Brazil
| | | | - Sandra Regina Salvador Ferreira
- Chemical and Food Engineering Department, Federal University of Santa Catarina, Florianópolis, SC, C.P. 476, 88040-900, Brazil
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16
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In Vitro Antilipidic and Antithrombotic Activities of Plectranthus glandulosus (Lamiaceae) Leaves Extracts and Fractions. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4145659. [PMID: 35178447 PMCID: PMC8844437 DOI: 10.1155/2022/4145659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/22/2021] [Accepted: 01/20/2022] [Indexed: 11/17/2022]
Abstract
Objective The present study investigated the effect of the leaves extracts and fractions of Plectranthus glandulosus on the inhibition of pancreatic lipase, cholesterol esterase, adipocytes lipid uptake, and antithrombotic activity which may be important in atherosclerosis development. Methods Aqueous, ethanolic, and hydroethanolic extracts of Plactranthus glandulosus were prepared by maceration. The hydroethanolic extract was fractionated into n-hexane, ethylacetate, and n-butanol fractions and their inhibition of pancreatic lipase, cholesterol esterase, adipocytes lipid uptake, and antithrombotic activities measured. Liquid chromatography-high resolution mass spectrometry (LC-HRMS) analysis was carried out to determine phytochemical constituents present in the extracts. Results The standard orlistat exhibited a higher inhibitory activity on pancreatic lipase and cholesterol esterase (16.31 μg/mL and 15.75 μg/mL, respectively) compared to ethyl acetate fraction (IC50, 17.70 μg/mL and IC50, 24.8 μg/mL, respectively). Among crude extract, hydroethanolic extract showed a better inhibition against pancreatic lipase (IC50, 21.06 μg/mL) and cholesterol esterase (IC50, 25.14 μg/mL) though not comparable to the effect of orlistat. The best lipid uptake inhibition was observed in the hydroethanolic extract (IC50, 45.42 μg/mL) followed by the ethyl acetate fraction (IC50, 47.77 μg/mL). A better antithrombolytic activity was exhibited by the ethyl acetate fraction at all concentrations (50-800 μ/mL), while hydroethanolic extract exhibited the best activity among crude extract. However, these were not comparable to the standard aspirin. The LC-HRMS analysis revealed the presence of 7-O-methyl luteolin 5-O-β-D-glucopyranoside, chrysoeriol 5-O-β-D-glucopyranoside, 5,7-dihydroxy-3,2′,4′-trimethoxyflavone, and plectranmicin as major compounds in both hydroethanolic extract and ethyl acetate fraction. Conclusion Thus, our finding supports the traditional use of this plant, which might provide a potential source for future antiatherosclerotic drug discovery.
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Xu C, Liang L, Yang T, Feng L, Mao X, Wang Y. In-vitro bioactivity evaluation and non-targeted metabolomic analysis of green tea processed from different tea shoot maturity. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112234] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Li X, Pu Y, Xu Y, Cao J, Jiang W. Potential Hypolipidemic Effects of Banana Condensed Tannins Through the Interaction with Digestive Juice Components Related to Lipid Digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8703-8713. [PMID: 34324317 DOI: 10.1021/acs.jafc.1c02794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
An in vitro intestinal model was used to evaluate the impact of banana condensed tannins (BCT) on the digestion of lipids (fat and cholesterol). BCT significantly suppressed the digestion of fat and cholesterol by interacting with digestive juice components. The interactions of BCT with a digestive juice mixture and its components (including bile acid, lipase, cholesterol esterase, CaCl2, NaCl, and cholesterol) were analyzed using turbidity, isothermal titration calorimetry, particle size distribution, zeta potential, and molecular docking analyses. The results showed that BCT reduced the digestion of lipids mainly via interaction with lipase, cholesterol esterase, bile acid, and cholesterol. Electrostatic CT-calcium ion complexes might reduce the extent of lipid digestion by decreasing the surface area of the lipid droplets exposed to the enzymes. This research provides valuable insights into the molecular mechanisms of the interaction of BCT with digestive juice components related to lipid digestion that may affect the rate and extent of lipid digestion.
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Affiliation(s)
- Xiangxin Li
- College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghuadonglu Road, Beijing 100083, P. R. China
| | - Yijing Pu
- College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghuadonglu Road, Beijing 100083, P. R. China
| | - Yan Xu
- College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghuadonglu Road, Beijing 100083, P. R. China
| | - Jiankang Cao
- College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghuadonglu Road, Beijing 100083, P. R. China
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, 17 Qinghuadonglu Road, Beijing 100083, P. R. China
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Chen J, Wu X, Zhou Y, He J. Camellia nitidissima Chi leaf as pancreatic lipase inhibitors: Inhibition potentials and mechanism. J Food Biochem 2021; 45:e13837. [PMID: 34231229 DOI: 10.1111/jfbc.13837] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 01/12/2023]
Abstract
In this study, Camellia nitidissima Chi leaf extract was investigated for its compounds and pancreatic lipase inhibitory potentials. The interaction was determined using ultraviolet (UV) spectroscopy, circular dichroism (CD), fluorescence spectroscopy (FS), and molecular docking to understand the inhibiton, kinetic, and conformation of extraction-pancreatic lipase complex. C. nitidissima Chi leaf extraction inhibited the pancreatic lipase activity in a dose-dependent manner at the concentration of 1-12 mg/ml. The Lineweaver-Burk plots indicated that the inhibition on pancreatic lipase by extraction was noncompetitive. In addition, the decrease in α-helix contents, increase in β-sheet and β-turn, and decrease in fluorescence intensity after extraction treatment indicated that the conformation of pancreatic lipase was changed. This work revealed that C. nitidissima Chi leaf extraction played a significant role in inhibiting pancreatic lipase activity and brought out a solution of delay fat accumulation. PRACTICAL APPLICATIONS: This study reports the components in the extract of C. nitidissima Chi leaf and its inhibitory effect and mechanism of pancreatic lipase. C. nitidissima Chi leaf is a good source of bioactive components, including multiflorin B, kaempferol-3-O-rutinoside, vicenin-2, apigenin-6-C-pentosyl-8-C-hexosyl, vitexin, kaempferol, and other ingredients. It can inhibit pancreatic lipase and be used to control obesity and treat hyperlipidemia. This study also revealed the structure changes of C. nitidissima Chi leaf extract on pancreatic lipase, and further revealed the inhibitory mechanism of C. nitidissima Chi leaf extract on lipase, which provides a theoretical basis for C. nitidissima Chi leaf as a lipase inhibitor.
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Affiliation(s)
- Jiahui Chen
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Xuehui Wu
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yue Zhou
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Junhua He
- College of Food Science, South China Agricultural University, Guangzhou, China
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