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Ke Z, Tan S, Shi S. Physicochemical characteristics, polyphenols and antioxidant activities of Dimocarpus longan grown in different geographical locations. ANAL SCI 2023:10.1007/s44211-023-00352-2. [PMID: 37106280 DOI: 10.1007/s44211-023-00352-2] [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: 11/26/2022] [Accepted: 04/19/2023] [Indexed: 04/29/2023]
Abstract
Longan is widely consumed due to its high nutritional value. The growing area has substantial effect on nutrient component and secondary metabolism of fruits. The aim of this study was to analyze the differences in physicochemical characteristics, polyphenol profiles, and antioxidant activity of longan fruits grown in four regions of China. Two representative cultivars 'Shixia' and 'Chuliang' located in Chongqing, Guanxi, Zhanjiang and Hainan were collected and analyzed. The results showed that the fruit weights, edible rates, and total soluble solids were 5.63-12.57 g, 52.7-68.7% and 17.54-23.68%, respectively. The titratable acids, reducing sugars, vitamin C contents were 0.22-0.62%, 2.27-5.55% and 68.29-157.34 mg/100 g, respectively. Interestingly, contents of total polyphenols and antioxidant activities in longan pericarps from Chongqing were higher than those from low-latitude regions for two cultivars. In addition, 10 polyphenols were detected by UPLC-QqQ-MS/MS which showed that the content of polyphenols was much higher in longan pericarps than in pulps. The content of polyphenol profiles in longan was mainly influenced by its tissue distribution. Cultivar type may also affect the polyphenol profile of longan.
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Affiliation(s)
- Zunli Ke
- Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, 550025, China
| | - Si Tan
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China.
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, 408100, China.
| | - Shengyou Shi
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, 571101, China.
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing, 408100, China.
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Tan S, Ke Z, Zhou C, Luo Y, Ding X, Luo G, Li W, Shi S. Polyphenol Profile, Antioxidant Activity, and Hypolipidemic Effect of Longan Byproducts. Molecules 2023; 28:molecules28052083. [PMID: 36903329 PMCID: PMC10004001 DOI: 10.3390/molecules28052083] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/10/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Longan, a popular fruit in Asia, has been used in traditional Chinese medicine to treat several diseases for centuries. Recent studies have indicated that longan byproducts are rich in polyphenols. The aim of this study was to analyze the phenolic composition of longan byproduct polyphenol extracts (LPPE), evaluate their antioxidant activity in vitro, and investigate their regulating effect on lipid metabolism in vivo. The results indicated that the antioxidant activity of LPPE was 231.350 ± 21.640, 252.380 ± 31.150, and 558.220 ± 59.810 (mg Vc/g) as determined by DPPH, ABTS, and FRAP, respectively. UPLC-QqQ-MS/MS analysis indicated that the main compounds in LPPE were gallic acid, proanthocyanidin, epicatechin, and phlorizin. LPPE supplementation prevented the body weight gain and decreased serum and liver lipids in high-fat diet-induced-obese mice. Furthermore, RT-PCR and Western blot analysis indicated that LPPE upregulated the expression of PPARα and LXRα and then regulated their target genes, including FAS, CYP7A1, and CYP27A1, which are involved in lipid homeostasis. Taken together, this study supports the concept that LPPE can be used as a dietary supplement in regulating lipid metabolism.
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Affiliation(s)
- Si Tan
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
- South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China
- Correspondence: (S.T.); (S.S.)
| | - Zunli Ke
- Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chongbing Zhou
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Yuping Luo
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Xiaobo Ding
- Luzhou Academy of Agricultural Sciences, Luzhou 646000, China
| | - Gangjun Luo
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Wenfeng Li
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Shengyou Shi
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
- South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China
- Correspondence: (S.T.); (S.S.)
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Exhaustive Plant Profile of “Dimocarpus longan Lour” with Significant Phytomedicinal Properties: A Literature Based-Review. Processes (Basel) 2021. [DOI: 10.3390/pr9101803] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: “Dimocarpus longan Lour” is a tropical and subtropical evergreen tree species mainly found in China, India, and Thailand; this plant, found naturally in Bangladesh, even locally, is used as “kaviraj” medication for treating different diseases, such as gastrointestinal disorders, wounds, fever, snake bites, menstrual problem, chickenpox, bone fractures, neurological disorders, and reproductive health. Different parts of this plant, especially juice pulp, pericarp, seeds, leaves, and flowers, contain a diverse group of botanical phytocompounds, and nutrient components which are directly related to alleviating numerous diseases. This literature-based review provides the most up-to-date data on the ethnomedicinal usages, phytochemical profiling, and bio-pharmacological effects of D. longan Lour based on published scientific articles. Methodology: A literature-based review was conducted by collecting information from various published papers in reputable journals and cited organizations. ChemDraw, a commercial software package, used to draw the chemical structure of the phytochemicals. Results: Various phytochemicals such as flavonoids, tannins, and polyphenols were collected from the various sections of the plant, and other compounds like vitamins and minerals were also obtained from this plant. As a treating agent, this plant displayed many biologicals activities, such as anti-proliferative, antioxidant, anti-cancer, anti-tyrosinase, radical scavenging activity, anti-inflammatory activity, anti-microbial, activation of osteoblast differentiation, anti-fungal, immunomodulatory, probiotic, anti-aging, anti-diabetic, obesity, neurological issues, and suppressive effect on macrophages cells. Different plant parts have displayed better activity in different disease conditions. Still, the compounds, such as gallic acid, ellagic acid, corilagin acid, quercetin, 4-O-methyl gallic acid, and (-)-epicatechin showed better activity in the biological system. Gallic acid, corilagin, and ellagic acid strongly exhibited anti-cancer activity in the HepG2, A549, and SGC 7901 cancer cell lines. Additionally, 4-O-methyl gallic acid and (-)-epicatechin have displayed outstanding antioxidant activity as well as anti-cancer activity. Conclusion: This plant species can be considered an alternative source of medication for some diseases as it contains a potential group of chemical constituents.
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Comparative Metabolic Profiling in Pulp and Peel of Green and Red Pitayas ( Hylocereus polyrhizus and Hylocereus undatus) Reveals Potential Valorization in the Pharmaceutical and Food Industries. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6546170. [PMID: 33778068 PMCID: PMC7980772 DOI: 10.1155/2021/6546170] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 11/27/2020] [Accepted: 12/29/2020] [Indexed: 11/19/2022]
Abstract
Pitaya (Hylocereus genus) is a popular plant with exotic and nutritious fruit, which has widespread uses as a source of nutrients and raw materials in the pharmaceutical industry. However, the potential of pitaya peel as a natural source of bioactive compounds has not yet fully been explored. Recent advances in metabolomics have paved the way for understanding and evaluating the presence of diverse sets of metabolites in different plant parts. This study is aimed at exploring the diversity of primary and secondary metabolites in two commercial varieties of pitaya, i.e., green pitaya (Hylocereus undatus) and red pitaya (Hylocereus polyrhizus). A total of 433 metabolites were identified using a widely targeted metabolomic approach and classified into nine known diverse classes of metabolites, including flavonoids, amino acids and its derivatives, alkaloids, tannins, phenolic acids, organic acids, nucleotides and derivatives, lipids, and lignans. Red pitaya peel and pulp showed relatively high accumulation of metabolites viz. alkaloids, amino acids and its derivatives, and lipids. Differential metabolite landscape of pitaya fruit indicated the presence of key bioactive compounds, i.e., L-tyrosine, L-valine, DL-norvaline, tryptophan, γ-linolenic acid, and isorhamnetin 3-O-neohesperidoside. The findings in this study provide new insight into the broad spectrum of bioactive compounds of red and green pitaya, emphasizing the valorization of the biowaste pitaya peel as raw material for the pharmaceutical and food industries.
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Shamsudin NA, Wah Goh LP, Sabullah MK, Abdul Sani S, Abdulla R, Gansau JA. A Review: Underutilized plant of Sabah and Its Potential Value. Curr Pharm Biotechnol 2021; 23:47-59. [PMID: 33563152 DOI: 10.2174/1389201022666210208201212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/03/2020] [Accepted: 12/20/2020] [Indexed: 11/22/2022]
Abstract
Underutilized plants are referred to a plant species which their potential is not fully utilized yet and they are usually found abundantly in certain local area but globally rare. Sabah is known for a high biodiversity and contains many underutilized plants. To our knowledge, this is the first review is to provide an overview information of medicinal value and pharmacological properties of underutilized plant in Sabah. Extract and metabolites in different part of several underutilized plant contains multiple beneficial bioactive compounds and exploitation of these compounds was supported by additional data which plays various biological activities including anti-atherosclerotic, anti-cancer, antihypercholesterolemic and anti-ulcerogenic. A handful of pharmacological studies on the natural product these underutilized plants have conclusively outlined the mode of action in treatment of several diseases and in other health aspects. This paper limits its scope to reviewe and highlight the potential of using underutilized plants in Sabah only which could serve as reliable resource for health product development in pharmaceutical and nutraceutical through continuous discovering of more active and sustainable resources as well as ingredients for food and medicine.
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Affiliation(s)
- Nor Amirah Shamsudin
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
| | - Lucky Poh Wah Goh
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
| | - Mohd Khalizan Sabullah
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
| | - Suraya Abdul Sani
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
| | - Rahmath Abdulla
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
| | - Jualang Azlan Gansau
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, . Malaysia
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Chiranthanut N, Teekachunhatean S, Panthong A, Lertprasertsuke N. Acute and chronic oral toxicity assessment of longan sugar extracts derived from whole fruit and from fruit pulp in rats. JOURNAL OF ETHNOPHARMACOLOGY 2020; 263:113184. [PMID: 32736055 DOI: 10.1016/j.jep.2020.113184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/13/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Longan (Dimocarpus longan Lour.) is one of the most popular subtropical fruits. Various parts of longan, including seeds, pericarp and pulp, have long been used in traditional medicine in China, Thailand and other Asian countries. The pulp has high sugar, vitamin and mineral content as well as bioactive components. The seeds and pericarp have also been reported to contain beneficial polyphenolic compounds. Longan sugar extract from pulp (LGSP) is prepared as a conventional sugar product. Longan sugar extract from whole longan fruit (LGSW) is also offered as a health food and as a medicinal product. AIM OF THE STUDY The objective of this study was to identify and compare potential health hazards of both LGSW and LGSP by testing for acute and chronic oral toxicity in rats. MATERIALS AND METHODS In acute toxicity testing, an oral dose (20 g/kg) of either LGSW or LGSP was administered to groups of rats. Mortality and clinical signs of toxicity were observed for 24 h, and then daily for a total of 14 days. In the chronic toxicity test, either LGSW (1, 2.5 and 5 g/kg/day) or LGSP (5 g/kg/day) was administered orally for a period of 180 days. After that treatment period, the rats in the satellite groups which received the highest doses of either LGSW or LGSP were observed for an additional 28 days. The rats then underwent clinical observation, body and organ weight measurement, hematological and biochemical analyses, and histopathological examination. RESULTS In the acute toxicity study, the oral administration of LGSP or LGSW in either pellet or syrup formulations did not cause mortality or any pathological abnormalities. In the chronic toxicity study, neither LGSW nor LGSP resulted in death or in any changes in behavior of the rats. All hematological and serum biochemical values of both the LGSW- and LGSP-treated groups were within the normal ranges. No histopathological abnormalities of any internal organs were observed. CONCLUSION The safety of longan sugar extract made from whole fruit (pulp, seeds and pericarb) is comparable to that of longan sugar extract made from pulp alone.
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Affiliation(s)
- Natthakarn Chiranthanut
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Supanimit Teekachunhatean
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Thai Traditional and Complementary Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Ampai Panthong
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nirush Lertprasertsuke
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
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Wang J, Guo D, Han D, Pan X, Li J. A comprehensive insight into the metabolic landscape of fruit pulp, peel, and seed in two longan (Dimocarpus longan Lour.) varieties. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2020. [DOI: 10.1080/10942912.2020.1815767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jing Wang
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture, Key Laboratory of Tropical and Subtropical17 Fruit Tree Research of Guangdong Province, Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, China
| | - Dongliang Guo
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture, Key Laboratory of Tropical and Subtropical17 Fruit Tree Research of Guangdong Province, Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, China
| | - Dongmei Han
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture, Key Laboratory of Tropical and Subtropical17 Fruit Tree Research of Guangdong Province, Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, China
| | - Xuewen Pan
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture, Key Laboratory of Tropical and Subtropical17 Fruit Tree Research of Guangdong Province, Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, China
| | - Jianguang Li
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization, Ministry of Agriculture, Key Laboratory of Tropical and Subtropical17 Fruit Tree Research of Guangdong Province, Institution of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province, China
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Phytochemical constituents and biological activities of longan (Dimocarpus longan Lour.) fruit: a review. FOOD SCIENCE AND HUMAN WELLNESS 2020. [DOI: 10.1016/j.fshw.2020.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Yi X, Jiang S, Qin M, Liu K, Cao P, Chen S, Deng J, Gao C. Compounds from the fruits of mangrove Sonneratia apetala: Isolation, molecular docking and antiaging effects using a Caenorhabditis elegans model. Bioorg Chem 2020; 99:103813. [PMID: 32334190 DOI: 10.1016/j.bioorg.2020.103813] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/08/2020] [Accepted: 03/31/2020] [Indexed: 01/22/2023]
Abstract
The chemical investigation of the fruits of a mangrove Sonneratia apetala collected from the Beibu Gulf led to the isolation of four new compounds, sonneradons A-D (1-4), as well as 18 known compounds (5-22). The structures of the new compounds were elucidated based on extensive spectroscopic analysis, and the structures of the known compounds were established by comparison of their spectroscopic data with those of related metabolites. The antiaging activities of all isolates were evaluated using the nematode Caenorhabditis elegans as a model organism. The results showed that 10 compounds could protect C. elegans by extending its lifespan. Compound 1 possessed the most potent effect in the anti-heat stress assay and significantly attenuated aging-related decreases in the pumping and bending of the nematodes in the healthspan assay. Molecular docking studies suggested that compound 1 was bound to the DNA binding domain of HSF-1 and promoted the conformation of HSF-1, thus strengthening the interaction between the HSF-1 and related DNA. GLN49, ASN-74, and LYS-80 of the binding region might be the key amino residues during the interaction.
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Affiliation(s)
- Xiangxi Yi
- Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China; Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China; College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shu Jiang
- Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Mei Qin
- Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Kai Liu
- Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Pei Cao
- Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China
| | - Shimin Chen
- Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
| | - Jiagang Deng
- Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China; Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China.
| | - Chenghai Gao
- Institutes of Marine Drugs/College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530001, China.
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Rakariyatham K, Zhou D, Rakariyatham N, Shahidi F. Sapindaceae (Dimocarpus longan and Nephelium lappaceum) seed and peel by-products: Potential sources for phenolic compounds and use as functional ingredients in food and health applications. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103846] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Zhu XR, Wang H, Sun J, Yang B, Duan XW, Jiang YM. Pericarp and seed of litchi and longan fruits: constituent, extraction, bioactive activity, and potential utilization. J Zhejiang Univ Sci B 2019; 20:503-512. [PMID: 31090276 PMCID: PMC6568221 DOI: 10.1631/jzus.b1900161] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 04/21/2019] [Indexed: 11/11/2022]
Abstract
Litchi (Litchi chinensis Sonn.) and longan (Dimocarpus longan Lour.) fruits have a succulent and white aril with a brown seed and are becoming popular worldwide. The two fruits have been used in traditional Chinese medicine as popular herbs in the treatment of neural pain, swelling, and cardiovascular disease. The pericarp and seed portions as the by-products of litchi and longan fruits are estimated to be approximately 30% of the dry weight of the whole fruit and are rich in bioactive constituents. In the recent years, many biological activities, such as tyrosinase inhibitory, antioxidant, anti-inflammatory, immunomodulatory, anti-glycated, and anti-cancer activities, as well as memory-increasing effects, have been reported for the litchi and longan pericarp and seed extracts, indicating a potentially significant contribution to human health. With the increasing production of litchi and longan fruits, enhanced utilization of the two fruit by-products for their inherent bioactive constituents in relation to pharmacological effects is urgently needed. This paper reviews the current advances in the extraction, processing, identification, and biological and pharmacological activities of constituents from litchi and longan by-products. Potential utilization of litchi and longan pericarps and seeds in relation to further research is also discussed.
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Affiliation(s)
- Xiang-rong Zhu
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Hui Wang
- Institute of Post-harvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jian Sun
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Bao Yang
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Xue-wu Duan
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Yue-ming Jiang
- Key Laboratory of Plant Resource Conservation and Sustainable Utilization, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
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Bai X, Pan R, Li M, Li X, Zhang H. HPLC Profile of Longan (cv. Shixia) Pericarp-Sourced Phenolics and Their Antioxidant and Cytotoxic Effects. Molecules 2019; 24:molecules24030619. [PMID: 30754614 PMCID: PMC6384674 DOI: 10.3390/molecules24030619] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/31/2019] [Accepted: 02/05/2019] [Indexed: 12/15/2022] Open
Abstract
Longan (Dimocarpus longan Lour.) pericarp, the main by-product of aril and pulp processing, is abundant in phenolic compounds and worthy of further utilization. The present work firstly reported HPLC analysis and in vitro antioxidant evaluation of longan (cv. Shixia) pericarp-derived phenolics (LPPs), the purified longan pericarp extract (LPE), as well as their cytotoxic effect on lung cancer cell line, A549. The results indicated that the purified LPE had significant amounts of phenolics, with content of 57.8 ± 0.6 mg of gallic acid equivalents per gram of dry longan pericarp (mg GAE·g-1 DLP), which consisted of six phenolic compounds (A⁻F), including protocatechuic acid (A), isoscopoletin (B), quercetin (C), ellagic acid (D), corilagin (E), and proanthocyanidins C1 (F). Antioxidant assays showed that LPPs (10 μM) and LPE (1.0 mg·mL-1) had certain antioxidant activities, in which corilagin (E) possessed the best DPPH radical scavenging rate 71.8 ± 0.5% and •OH inhibition rate 75.9 ± 0.3%, and protocatechuic acid (A) exhibited the strongest Fe2+ chelating ability 36.4 ± 0.7%. In vitro cytotoxic tests suggested that LPPs had different effect on A549 cell line, in which corilagin (E) exhibited potent cytotoxicity with an IC50 value of 28.8 ± 1.2 μM. These findings were further confirmed by cell staining experiments.
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Affiliation(s)
- Xuelian Bai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 10048, China.
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China.
| | - Rui Pan
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Mingzhu Li
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 10048, China.
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China.
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Wang H, Chen Y, Lin H, Sun J, Lin Y, Lin M. Phomopsis longanae Chi-Induced Change in ROS Metabolism and Its Relation to Pericarp Browning and Disease Development of Harvested Longan Fruit. Front Microbiol 2018; 9:2466. [PMID: 30386318 PMCID: PMC6198053 DOI: 10.3389/fmicb.2018.02466] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 09/26/2018] [Indexed: 11/13/2022] Open
Abstract
Phomopsis longanae Chi is a major pathogenic fungus that infects harvested longan fruit. This study aimed to investigate the effects of P. longanae on reactive oxygen species (ROS) metabolism and its relation to the pericarp browning and disease development of harvested longan fruit during storage at 28°C and 90% relative humidity. Results showed that compared to the control longans, P. longanae-inoculated longans displayed higher indexes of pericarp browning and fruit disease, higher O2 -. generation rate, higher accumulation of malondialdehyde (MDA), lower contents of glutathione (GSH) and ascorbic acid (AsA), lower 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging ability and reducing power in pericarp. In addition, P. longanae-infected longans exhibited higher activities of superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) in the first 2 days of storage, and lower activities of SOD, CAT, and APX during storage day 2-5 than those in the control longans. These findings indicated that pericarp browning and disease development of P. longanae-infected longan fruit might be the result of the reducing ROS scavenging ability and the increasing O2 -. generation rate, which might lead to the peroxidation of membrane lipid, the loss of compartmentalization in longan pericarp cells, and subsequently cause polyphenol oxidase (PPO) and peroxidase (POD) to contact with phenolic substrates which result in enzymatic browning of longan pericarp, as well as cause the decrease of disease resistance to P. longanae and stimulate disease development of harvested longan fruit.
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Affiliation(s)
- Hui Wang
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yihui Chen
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hetong Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Junzheng Sun
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yifen Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Mengshi Lin
- Food Science Program, Division of Food Systems and Bioengineering, University of Missouri, Columbia, MO, United States
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Khan SA, Liu L, Lai T, Zhang R, Wei Z, Xiao J, Deng Y, Zhang M. Phenolic profile, free amino acids composition and antioxidant potential of dried longan fermented by lactic acid bacteria. Journal of Food Science and Technology 2018; 55:4782-4791. [PMID: 30482973 DOI: 10.1007/s13197-018-3411-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/29/2018] [Accepted: 09/04/2018] [Indexed: 11/25/2022]
Abstract
In this study, dried longan pulp (DLP) was subjected to fermentation using selected strains of lactic acid bacteria (Lactobacillus plantarum subsp. Plantarum and Leuconostoc mesenteroides). We then studied changes in the free and bound phytochemical profile, antioxidant activity, free amino acid, and organic acid composition. Fermentation exhibited a 17.4% and 5.7% increase in the amount of free and total phenolic contents of DLP. Phenolic composition determined by HPLC revealed significant changes due to fermentation that were primarily in the contents of gallic acid, vanillic acid, 4-methylcatechol and p-coumaric acid, resulting in a 37.9% and 25.7% increase in free gallic acid and 4-methylcatechol, respectively. Fermentation was also found to enhance the ferric reducing antioxidant power of both free and total and the oxygen radical absorbance capacity of free phenolic fraction by 18.3%, 11.8%, and 37.4%, respectively. In addition, fermentation was observed to reduce the contents of free amino acids with bitter taste (phenylalanine, tyrosine and leucine), and increase amino acids (taurine, aspartic acid, cysteine, cysteine thiazoline and γ-amino-butyric acid) having antioxidant potential. Therefore, this study provides basis for the production of fermented longan-based functional products with improved antioxidant activity.
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Affiliation(s)
- Sher Ali Khan
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Lei Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Ting Lai
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Zhencheng Wei
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Juan Xiao
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Yuanyuan Deng
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, 510610 People's Republic of China
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15
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Pereira ACH, Lenz D, Nogueira BV, Scherer R, Andrade TU, da Costa HB, Romão W, Pereira TMC, Endringer DC. Gastroprotective activity of the resin from Virola oleifera. PHARMACEUTICAL BIOLOGY 2017; 55:472-480. [PMID: 27937036 PMCID: PMC6130730 DOI: 10.1080/13880209.2016.1251467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 07/12/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT The resin from the trunk wood of Virola oleifera (Schott) A. C. Smith (Myristicaceae) is used in folk medicine to hasten wound repair and to treat pain and inflammatory conditions, and our previous report indicated the anti-oxidative properties in other oxidative stress model. OBJECTIVE To investigate the protective effects of resin from V. oleifera in two experimental models of gastric ulcer oxidative-stress dependent. MATERIALS AND METHODS Plant material was collected and the resin was subjected to partitioning with organic solvents. The buthanol fraction was subjected to chromatographic and spectrometric methods for isolation and structural elucidation. The resin was quantified for polyphenols and flavonoids by colorimetric methods. Furthermore, the antioxidant activity of resin was determined by three different methods. The ulcers were induced acutely in Swiss male mice with ethanol/HCl and indomethacin using single-doses of 10 and 100 mg/kg. The gastroprotection of the experimental groups was comparable to reference control lansoprazole (3 mg/kg). RESULTS The high content of polyphenols (∼82%) and the presence of epicatechin and eriodictyol were determined. The LD50 was estimated at 2500 mg/kg. At minimum (10 mg/kg) and maximum (100 mg/kg) dosage of resin, both in ethanol/HCl as indomethacin ulcer induction models demonstrate reduction of lesions (minimum: ∼97% and ∼66%; maximum: ∼95% and ∼59%). DISCUSSION The gastroprotection might be related to tannins, phenolic acids and flavonoids present in the resin by antioxidant properties. CONCLUSIONS The results indicate that this resin has gastroprotective activity probably associated with the presence of phenolic antioxidant substances.
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Affiliation(s)
| | - Dominik Lenz
- Pharmaceutical Sciences Graduated Program, University Vila Velha, Vila Velha, Brazil
| | | | - Rodrigo Scherer
- Pharmaceutical Sciences Graduated Program, University Vila Velha, Vila Velha, Brazil
| | - Tadeu Uggere Andrade
- Pharmaceutical Sciences Graduated Program, University Vila Velha, Vila Velha, Brazil
| | | | - Wanderson Romão
- Morphology Department, Federal University of Espírito Santo, Vitória, Brasil
- Federal Institute of Education, Science and Technology (IFES), Vila Velha, Brazil
| | - Thiago Melo Costa Pereira
- Pharmaceutical Sciences Graduated Program, University Vila Velha, Vila Velha, Brazil
- Federal Institute of Education, Science and Technology (IFES), Vila Velha, Brazil
| | - Denise Coutinho Endringer
- Pharmaceutical Sciences Graduated Program, University Vila Velha, Vila Velha, Brazil
- Federal Institute of Education, Science and Technology (IFES), Vila Velha, Brazil
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16
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Sheu SY, Fu YT, Huang WD, Chen YA, Lei YC, Yao CH, Hsu FL, Kuo TF. Evaluation of Xanthine Oxidase Inhibitory Potential and In vivo Hypouricemic Activity of Dimocarpus longan Lour. Extracts. Pharmacogn Mag 2016; 12:S206-12. [PMID: 27279708 PMCID: PMC4883080 DOI: 10.4103/0973-1296.182176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 12/17/2015] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Longan is a fruit tree known to contain many phenolic components, which are capable of protecting people from oxidative damage through an anti-inflammatory mechanism. It may be also worthwhile to study the effect on lowering uric acid activity. MATERIALS AND METHODS This study investigates the lowering of uric acid using longan extracts, including flowers, pericarps, seeds, leaves, and twigs, on potassium-oxonate-induced hyperuricemia mice and its inhibitory actions against xanthine oxidase (XO) activities. RESULTS The findings revealed that ethyl acetate fraction of longan extracts exhibited strong XO-inhibitory activity, and the flower extracts (IC50 = 115.8 μg/mL) revealed more potent XO-inhibitory activity to those of pericarps (118.9 μg/mL), twigs (125.3 μg/mL), seeds (262.5 μg/mL), and leaves (331.1 μg/mL) in vitro. In addition, different dosages of longan extract (50-100 mg/kg) were administered to hyperuricemic mice. The lowering effect of longan extracts on uric acid at 75 mg/kg markedly reduced plasma uric acid levels in decreasing order: Flowers (80%) > seeds (72%) > pericarps (64%) > twigs (59%) > leaves (41%), compared with allopurinol (89%). Finally, 10 isolated phytochemicals from longan flowers were then examined in vitro. The results indicated that proanthocyanidin A2 and acetonylgeraniin A significantly inhibited XO activity in vitro. This is the first report providing new insights into the urate-reducing effect of phenolic dimer and hydrolyzable tannin, which can be developed to potential hypouricemic agents. SUMMARY Longan flower extracts possess more potent XO-inhibitory activity than pericarps, twigs, seeds, and leaves in vitroThe lowering effect of longan flowers and seeds extracts markedly reduced plasma uric acid levels as compared to allopurinol in vivoThe extract proanthocyanidin A2 and acetonylgeraniin A were demonstrated potent XO inhibitory activity in vitro Abbreviations used: PO: Potassium-oxonate, XO: xanthine oxidase, HE: n-hexane, EA: ethyl acetate, i.p.: intraperitoneal, PBS: phosphate-buffered saline, AP: allopurinol, PUA: plasma uric acid.
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Affiliation(s)
- Shi-Yuan Sheu
- School of Medicine, Chung Shan Medical University, Taichung Branch, Taiwan; Department of Integrated Chinese and Western Medicine, Chung Shan Medical University Hospital, Taichung Branch, Taiwan; Department of Occupational Therapy, Asia University, Taichung Branch, Taiwan
| | - Yuan-Tsung Fu
- Department of Chinese Medicine, Buddhist Tzu Chi General Hospital, Taichung Branch, Taiwan; School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Taiwan
| | - Wen-Dar Huang
- Department of Agronomy, National Taiwan University, Taiwan
| | - Yung-Ann Chen
- School of Veterinary Medicine, National Taiwan University, Taiwan
| | - Yi-Chih Lei
- School of Veterinary Medicine, National Taiwan University, Taiwan
| | - Chun-Hsu Yao
- School of Chinese Medicine, China Medical University, Taiwan; Department of Biomedical Imaging and Radiological Science, China Medical University, Taiwan; Department of Biomedical Informatics, Asia University, Taiwan
| | - Feng-Lin Hsu
- College of Pharmacy, School of Pharmacy, Taipei Medical University, Taiwan; Graduate Institute of Pharmacognosy, Taipei Medical University, Taiwan
| | - Tzong-Fu Kuo
- School of Veterinary Medicine, National Taiwan University, Taiwan; Department of Post-Baccalaureate Veterinary Medicine, Asia University, Taiwan
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Li L, Xu J, Mu Y, Han L, Liu R, Cai Y, Huang X. Chemical characterization and anti-hyperglycaemic effects of polyphenol enriched longan (Dimocarpus longan Lour.) pericarp extracts. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.01.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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18
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Su D, Ti H, Zhang R, Zhang M, Wei Z, Deng Y, Guo J. Structural elucidation and cellular antioxidant activity evaluation of major antioxidant phenolics in lychee pulp. Food Chem 2014; 158:385-91. [PMID: 24731359 DOI: 10.1016/j.foodchem.2014.02.134] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 02/21/2014] [Accepted: 02/24/2014] [Indexed: 12/12/2022]
Abstract
Lychee pulp contains phenolic compounds that are strong antioxidants, but the identities of the major antioxidants present are unknown. In the present study, the major contributors to the antioxidant activity of fresh lychee pulp were identified and their cellular antioxidant activities were investigated. Aqueous acetone extracts of lychee pulp were fractionated on polyamide resin, and those fractions with the largest antioxidant and radical scavenging activities were selected using cellular antioxidant activity and oxygen radical absorbance capacity assays. Three compounds that were major contributors to the antioxidant activity in these fractions were obtained by reverse-phase preparative HPLC and identified as quercetin 3-O-rutinoside-7-O-α-L-rhamnosidase (quercetin 3-rut-7-rha), quercetin 3-O-rutinoside (rutin) and (-)-epicatechin using NMR spectroscopy, HMBC, and ESI-MS spectrometry. The concentration of quercetin 3-rut-7-rha was 17.25mg per 100g of lychee pulp fresh weight. This is the first report of the identification and cellular antioxidant activity of quercetin 3-rut-7-rha from lychee pulp.
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Affiliation(s)
- Dongxiao Su
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China; Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Huihui Ti
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Ruifen Zhang
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Mingwei Zhang
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China.
| | - Zhengchen Wei
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Yuanyuan Deng
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Jinxin Guo
- Key Laboratory of Functional Foods, Ministry of Agriculture, Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
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19
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Yogendra Kumar M, Tirpude R, Maheshwari D, Bansal A, Misra K. Antioxidant and antimicrobial properties of phenolic rich fraction of Seabuckthorn (Hippophae rhamnoides L.) leaves in vitro. Food Chem 2013; 141:3443-50. [DOI: 10.1016/j.foodchem.2013.06.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 06/05/2013] [Accepted: 06/13/2013] [Indexed: 10/26/2022]
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20
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Yang B, Jiang Y, Shi J, Chen F, Ashraf M. Extraction and pharmacological properties of bioactive compounds from longan (Dimocarpus longan Lour.) fruit — A review. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.10.019] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Dembitsky VM, Poovarodom S, Leontowicz H, Leontowicz M, Vearasilp S, Trakhtenberg S, Gorinstein S. The multiple nutrition properties of some exotic fruits: Biological activity and active metabolites. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.03.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Sun J, Su W, Peng H, Zhu J, Xu L, Bruñá NM. Two Endogenous Substrates for Polyphenoloxidase in Pericarp Tissues of Postharvest Rambutan Fruit. J Food Sci 2010; 75:C473-7. [DOI: 10.1111/j.1750-3841.2010.01660.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Prasad KN, Xie H, Hao J, Yang B, Qiu S, Wei X, Chen F, Jiang Y. Antioxidant and anticancer activities of 8-hydroxypsoralen isolated from wampee [Clausena lansium (Lour.) Skeels] peel. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.04.073] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Prasad KN, Hao J, Shi J, Liu T, Li J, Wei X, Qiu S, Xue S, Jiang Y. Antioxidant and anticancer activities of high pressure-assisted extract of longan (Dimocarpus longan Lour.) fruit pericarp. INNOV FOOD SCI EMERG 2009. [DOI: 10.1016/j.ifset.2009.04.003] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zheng G, Xu L, Wu P, Xie H, Jiang Y, Chen F, Wei X. Polyphenols from longan seeds and their radical-scavenging activity. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.02.059] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Identification of phenolic compounds and appraisal of antioxidant and antityrosinase activities from litchi (Litchi sinensis Sonn.) seeds. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.01.079] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Ma Y, Ma H, Eun JS, Nam SY, Kim YB, Hong JT, Lee MK, Oh KW. Methanol extract of Longanae Arillus augments pentobarbital-induced sleep behaviors through the modification of GABAergic systems. JOURNAL OF ETHNOPHARMACOLOGY 2009; 122:245-250. [PMID: 19330921 DOI: 10.1016/j.jep.2009.01.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This experiment was performed to investigate whether methanol extract of Longanae Arillus (MELA) has hypnotic effects and/or enhances pentobarbital-induced sleep behaviors through the GABAergic systems. MELA prolonged sleep time and reduced sleep latency induced by pentobarbital similar to muscimol, a GABAA receptors agonist. MELA also increased sleep rate and sleep time in the combined administration with pentobarbital at the sub-hypnotic dosage and showed synergic effects with muscimol in potentiating sleep onset and enhancing sleep time induced by pentobarbital. However, MELA itself did not induce sleep at higher dose which was used in this experiment. In addition, both of MELA and pentobarbital increased chloride influx in primary cultured cerebellar granule cells. MELA increased GABAA receptors gamma-subunit expression and had no effect on the expression of alpha- and beta-subunits, and glutamic acid decarboxylase (GAD) in primary cultured cerebellar granule cells, showing different expression of subunits from pentobarbital. In conclusion, MELA itself does not induce sleep, but it augments pentobarbital-induced sleep behaviors through the modification of GABAergic systems.
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Affiliation(s)
- Yuan Ma
- Research Institute of Veterinary Medicine, Chungbuk National University, Cheongju 361-763, South Korea
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29
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Hsieh MC, Shen YJ, Kuo YH, Hwang LS. Antioxidative activity and active components of longan (Dimocarpus longan Lour.) flower extracts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:7010-7016. [PMID: 18662011 DOI: 10.1021/jf801155j] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Three different solvent extracts (methanol, ethyl acetate, and n-hexane) of longan ( Dimocarpus longan Lour.) flowers were assayed with three different antioxidant capacity methods, namely, the DPPH free radical scavenging effect, the oxygen radical absorbance capacity (ORAC) assay, and the inhibition of Cu(2+)-induced oxidation of human low-density lipoprotein (LDL). It was revealed that the methanol extract has the best antioxidative activity, followed by ethyl acetate and n-hexane extracts. The methanol extract was separated by liquid-liquid partition into n-hexane, ethyl acetate, n-butanol, and water fractions. The ethyl acetate fraction was found to have the highest activity of delaying LDL oxidation. After silica gel column chromatography, the fraction having a superior activity was identified as containing two major compounds, (-)-epicatechin and proanthocyanidin A2.
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Affiliation(s)
- Meng-Chieh Hsieh
- Graduate Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan 106
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