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Wang X, Ren Y, Li S, Guo C, Gao Z. Development of a polyphenol-enriched whole kiwifruit dietary supplement and its potential in ameliorating hyperlipidemia. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2142-2155. [PMID: 37926484 DOI: 10.1002/jsfa.13099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/28/2023] [Accepted: 11/06/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Kiwifruit pomace, which contains abundant phenolic compounds, is typically discarded during the juicing process, leading to wastage of valuable resources. To address this issue, various indicators (including total acidity, sugar/acid ratio, vitamin C, total polyphenols, polyphenol monomers, and soluble solids content) of 15 kiwifruit cultivars were evaluated and juiced. Then, a polyphenol-concentrated solution from kiwifruit pomace was backfilled into kiwi juice to prepare whole nutritious compound kiwi juice, and its anti-hyperlipidemic activity on obese model mice was then investigated. RESULTS Through grey relational analysis and the technique for order preference by similarity to an ideal solution (TOPSIS), Kuimi and Huayou were identified as the predominant varieties for juicing, with weighted relevance scores of 0.695 and 0.871 respectively and TOPSIS scores of 0.6509 and 0.8220 respectively. The polyphenol content of Cuixiang pomace was 43.97 mg g-1 , making it the most suitable choice for polyphenol extraction. By backfilling a polyphenol-concentrated solution derived from Cuixiang pomace into compound kiwi juice of Huayou and Kuimi, the whole nutritious compound kiwi juice with polyphenols was produced and exhibited superior bioactivities, including enhanced hepatic oxidative stress defense, and alleviated serum lipid abnormalities. Furthermore, whole nutritious compound kiwi juice with polyphenols ameliorated host intestinal microbiota dysbiosis by increasing the relative abundance of the phyla Bacteroidota and Verrucomicrobiota. CONCLUSION A hypolipidemic dietary supplement based on kiwifruit pomace polyphenols has been successfully developed, providing an effective solution for hyperlipidemia intervention. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Yaopeng Ren
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Shiqi Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Chunfeng Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
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Li R, Ru Y, Feng L, Wang Z, He X, Zhang X. A comparative study of nutrient composition, bioactive properties and phytochemical characteristics of Stauntonia obovatifoliola flesh and pericarp. Front Nutr 2022; 9:1013971. [PMID: 36159481 PMCID: PMC9501892 DOI: 10.3389/fnut.2022.1013971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/23/2022] [Indexed: 11/22/2022] Open
Abstract
A comparative study was conducted among the flesh (SOF) and pericarp (SOP) of Stauntonia obovatifoliola, a wild edible fruit in China. The nutrient composition of both these tissues was firstly quantified, and liquid-liquid extraction was then used to separate their methanolic extracts to get petroleum ether, chloroform, ethyl acetate, n-butanol, and residual aqueous fractions, which were evaluated for their total phenol content (TPC), total flavonoid content (TFC), antioxidant capacities, and α-glucosidase and acetylcholinesterase inhibition abilities. Finally, high-performance liquid chromatography (HPLC) was used to analyze their phytochemical composition. The results revealed the excellent nutritional properties of both SOF and SOP, especially SOP (total dietary fiber, 15.50 g/100 g; total amino acids, 0.80 g/100 g; vitamin C, 18.00 mg/100 g; Ca, 272.00 mg/kg; K, 402.00 mg/100 g). For both tissues, their ethyl acetate fractions showed the highest TPC (355.12 and 390.99 mg GAE/g DE) and TFC (306.58 and 298.48 mg RE/g DE). Surprisingly, the ethyl acetate fraction of SOP exhibited the strongest DPPH and ABTS radical scavenging capacity with 1046.94 and 1298.64 mg Trolox/g, respectively, which were higher than that of controls Vc and BHT. In contrast, their chloroform fractions exhibited the strongest ferric reducing antioxidant power (1903.05 and 1407.11 mg FeSO4/g DE) and oxygen radical absorbance capacity (951.12 and 1510.21 mg Trolox/g DE). In addition, the ethyl acetate fraction of SOF displayed superior α-glucosidase inhibition ability with the IC50 value of 0.19 mg/mL, which was comparable to control acarbose. In comparison, the ethyl acetate fraction of SOP had the best acetylcholinesterase inhibition ability with the IC50 value of 0.47 mg/mL. The HPLC analysis results demonstrated that the ethyl acetate fraction of SOP showed significantly higher phenolic content, particularly for phenolic acids (p-hydroxybenzoic acid, 8.00 ± 0.65 mg/g) and flavonoids (epicatechin, 28.63 ± 1.26 mg/g), as compared to other samples. The above results suggest that Stauntonia obovatifoliola, especially its pericarp, had excellent nutrient compositions, bioactive properties and phytochemical characteristics, and had the potential to be developed as natural functional food.
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Affiliation(s)
- Rurui Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- College of Life Science, Southwest Forestry University, Kunming, China
| | - Yuerong Ru
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- College of Life Science, Southwest Forestry University, Kunming, China
| | - Ling Feng
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
| | - Zhenxing Wang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- College of Life Science, Southwest Forestry University, Kunming, China
| | - Xiahong He
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- College of Horticulture and Landscape, Southwest Forestry University, Kunming, China
- *Correspondence: Xiahong He
| | - Xuechun Zhang
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China
- College of Life Science, Southwest Forestry University, Kunming, China
- Xuechun Zhang
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Inoue Y, Cormanes L, Yoshimura K, Sano A, Hori Y, Suzuki R, Kanamoto I. Effect of Apple Consumption on Postprandial Blood Glucose Levels in Normal Glucose Tolerance People versus Those with Impaired Glucose Tolerance. Foods 2022; 11:foods11121803. [PMID: 35742001 PMCID: PMC9223382 DOI: 10.3390/foods11121803] [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: 05/14/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 11/16/2022] Open
Abstract
The present study investigated the effect of apple consumption on postprandial blood glucose and insulin levels in subjects with normal versus impaired glucose tolerance. The study participants were ten healthy subjects with no glucose intolerance (normal subjects) (mean, 24.4 ± 4.8 years) and nine subjects with impaired glucose tolerance (mean, 45.2 ± 11.1 years, including 2 on insulin therapy). The test meal included white rice (148 g) and a Fuji apple (150 g). The normal subjects were randomly divided into two groups: the apple-first group, wherein the subjects consumed white rice 5 min after consuming the apple, and the rice-first group, wherein the subjects consumed an apple 5 min after consuming the white rice. Blood samples were then taken from both groups for 3 h. In addition, the subjects with impaired glucose tolerance received the same treatment as the normal subjects, with the difference being glucose level monitoring according to the order in which the apples were consumed. In the normal subjects, the Cmax of Δblood glucose and Δinsulin levels were 54.0 ± 5.0 mg/dL and 61.9 ± 7.2 µU/dL versus 46.2 ± 5.9 mg/dL and 49.8 ± 8.5 µU/dL in the rice-first and apple-first groups, respectively. The incremental area under the curve (iAUC) of insulin tended to decrease in the apple-first group. In the impaired glucose tolerance subjects, the Cmax of Δblood glucose was 75.2 ± 7.2 mg/dL in the apple-first group compared to 90.0 ± 10.0 mg/dL in the rice-first group, which was a significant difference (p < 0.05). The iAUC of blood glucose was lower in the apple-first group. Eating an apple before a meal may be a simple and effective strategy for managing the glycaemic response in individuals with impaired glucose tolerance.
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Affiliation(s)
- Yutaka Inoue
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
- Correspondence: ; Tel.: +81-49-271-7980
| | - Lianne Cormanes
- Department of Nutrition and Dietetics, School of Health Care Professions, University of San Carlos, Cebu City 6000, Philippines;
| | - Kana Yoshimura
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
| | - Aiko Sano
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
| | - Yumiko Hori
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
| | - Ryuichiro Suzuki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
| | - Ikuo Kanamoto
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 3500295, Japan; (K.Y.); (A.S.); (Y.H.); (R.S.); (I.K.)
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