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Khalil MNA, Afifi SM, Eltanany BM, Pont L, Benavente F, El-Sonbaty SM, Sedeek MS. Assessment of the effect of drying on Brassica greens via a multiplex approach based on LC-QTOF-MS/MS, molecular networking, and chemometrics along with their antioxidant and anticancer activities. Food Res Int 2024; 180:114053. [PMID: 38395547 DOI: 10.1016/j.foodres.2024.114053] [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: 11/13/2023] [Revised: 01/13/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024]
Abstract
Turnip (Brassica rapa var rapa L.) leaves are a rich source of versatile bioactive phytochemicals with great potential in the food and herbal industries. However, the effect of drying on its constituents has never been studied before. Hereto, three drying techniques were compared, namely, lyophilization (LY), vacuum oven (VO), and shade drying (SD). Chemical profiling utilizing liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (LC-QTOF-MS/MS) combined with chemometrics showed the different impacts of the drying methods on the phytochemical composition of the alcoholic leaf extracts. Unsupervised principal component analysis (PCA) and supervised partial least squares-discriminant analysis (PLS-DA) of the LC-QTOF-MS/MS data showed distinct distant clustering across the three drying techniques. Loading plots and VIP scores demonstrated that sinapic acid, isorhamnetin glycosides, and sinapoyl malate were key markers for LY samples. Meanwhile, oxygenated and polyunsaturated fatty acids were characteristic for SD samples and oxygenated polyunsaturated fatty acids and verbascoside were characteristic for VO samples. LY resulted in the highest total phenolics (TP) and total flavonoid (TF) contents followed by SD and VO. LY and SD samples had much higher antioxidant activity than VO measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), oxygen radical absorbance capacity (ORAC), and iron metal chelation assays. According to the anticancer activity, the drying methods were ranked in descending order as SD > LY ≫ VO when tested against colon, breast, liver, and lung cancer cell lines. Among the identified compounds, flavonoids and omega-3 fatty acids were key metabolites responsible for the anticancer activity as revealed by partial least squares (PLS) regression and correlation analyses. In conclusion, compared to LY, SD projected out as a cost-effective drying method without compromising the phytochemical and biological activities of Brassica greens. The current findings lay the foundation for further studies concerned with the valorization of Brassica greens.
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Affiliation(s)
- Mohammed N A Khalil
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Sherif M Afifi
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Egypt
| | - Basma M Eltanany
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona 08028, Spain; Serra Húnter Program, Generalitat de Catalunya, Barcelona 08007, Spain
| | - Fernando Benavente
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA-UB), University of Barcelona, Barcelona 08028, Spain.
| | - Sawsan M El-Sonbaty
- Department of Radiation Microbiology, The National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Nasr City 11787, Egypt
| | - Mohamed S Sedeek
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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2
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Accumulation of Antioxidative Phenolics and Carotenoids Using Thermal Processing in Different Stages of Momordica charantia Fruit. Molecules 2023; 28:molecules28031500. [PMID: 36771165 PMCID: PMC9920897 DOI: 10.3390/molecules28031500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
The bitter taste of M. charantia fruit limits its consumption, although the health benefits are well known. The thermal drying process is considered as an alternative method to reduce the bitterness. However, processing studies have rarely investigated physiochemical changes in fruit stages. The antioxidant activities and physiochemical properties of various fruit stages were investigated using different thermal treatments. The color of the thermally treated fruit varied depending on the temperature. When heat-treated for 3 days, the samples from the 30 °C and 90 °C treatments turned brown, while the color of the 60 °C sample did not change significantly. The antioxidant activities were increased in the thermally processed samples in a temperature-dependent manner, with an increase in phenolic compounds. In the 90 °C samples, the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity presented a 6.8-fold higher level than that of nonthermal treatment in mature yellow fruit (S3), whereas the activity showed about a 3.1-fold higher level in immature green (S1) and mature green (S2) fruits. Regardless of the stages, the carotenoid content tended to decrease with increasing temperature. In terms of antioxidant activities, these results suggested that mature yellow fruit is better for consumption using thermal processing.
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3
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Trautenmuller AL, de Almeida Soares J, Behm KC, Guimarães LMM, Xavier-Silva KR, Monteiro de Melo A, Caixeta GAB, Abadia Marciano de Paula J, Luiz Cardoso Bailão EF, Amaral VCS. Cytotoxicity and maternal toxicity attributed to exposure to Momordica charantia L. (Cucurbitaceae) dry leaf extract. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:36-50. [PMID: 36529899 DOI: 10.1080/15287394.2022.2157354] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Momordica charantia L. (Cucurbitaceae), popularly known as "bitter melon" or "bitter gourd," is a climbing plant well-adapted to tropical countries. This plant is used traditionally to treat several conditions including diabetes mellitus, inflammation, liver dysfunctions, and cancer. Given the widespread ethnopharmacological use, this study aimed to examine the cytogenetic, maternal, and developmental toxicity attributed to exposure to dry extract of M. charantia leaves using Allium cepa and Wistar rats as test models. First, phytochemical characterization of the dry extract by high performance liquid chromatography (HPLC) analyses was performed. Then, Allium cepa roots were exposed to three different concentrations of the dry extract (0.25, 0.5, or 1 mg/ml) to determine the mitotic index, frequency of chromosomal aberrations, and nuclear abnormalities. In addition, pregnant Wistar rats were administered either 500; 1,000 or 2,000 mg/kg dry extract during the gestational period (GD) days 6-15, and subsequently possible toxic effect on the dams and fetuses were recorded. HPLC analyses confirmed rutin as the main secondary metabolite present in the dry extract. In the Allium cepa test, the dry extract was cytotoxic. In Wistar rats, dry extract administration reduced water and feed intake and mean body mass gain, indicating maternal toxicity during the organogenesis period. However, the dry extract did not markedly affect reproductive outcome parameters evaluated. Regarding developmental toxicity assessment, the dry extract treatment did not significantly alter number of skeletal malformations in the offspring. Data demonstrated that the dry extract of M. charantia leaves presents cytotoxicity and low maternal toxicity, indicating indiscriminate use needs to be avoided.
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Affiliation(s)
- Ana Luisa Trautenmuller
- Laboratório de Farmacologia e Toxicologia de Produtos Naturais e Sintéticos, Câmpus Central, Universidade Estadual de Goiás, Anápolis, Brazil
| | - Jonathan de Almeida Soares
- Laboratório de Farmacologia e Toxicologia de Produtos Naturais e Sintéticos, Câmpus Central, Universidade Estadual de Goiás, Anápolis, Brazil
| | - Kamila Campos Behm
- Laboratório de Biotecnologia, Câmpus Central, Universidade Estadual de Goiás, Anápolis, Brazil
| | | | | | - Anielly Monteiro de Melo
- Laboratório de Pesquisa, Desenvolvimento & Inovação de Produtos da Biodiversidade, Câmpus Central, Universidade Estadual de Goiás, Anápolis, Brazil
| | | | - Joelma Abadia Marciano de Paula
- Laboratório de Pesquisa, Desenvolvimento & Inovação de Produtos da Biodiversidade, Câmpus Central, Universidade Estadual de Goiás, Anápolis, Brazil
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Duan SC, Kwon SJ, Eom SH. Effect of Thermal Processing on Color, Phenolic Compounds, and Antioxidant Activity of Faba Bean ( Vicia faba L.) Leaves and Seeds. Antioxidants (Basel) 2021; 10:antiox10081207. [PMID: 34439455 PMCID: PMC8388975 DOI: 10.3390/antiox10081207] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
The leaves and seeds of the faba bean are good sources of L-3,4-dihydroxyphenylalanin (L-dopa), and are usually eaten with thermal cooking methods. However, little information is available on the effect of thermal treatments on their nutritional value. We compared the changes in color, contents of L-dopa, vitamin C (Vc), total phenolics (TP), total flavonoids (TF) and antioxidant activity after dry heating or steaming faba bean leaves and seeds. The young leaves provided higher values of all the estimate factors, regardless of the thermal treatment. Steaming significantly degraded nutritional values of the leaves, but less changed in seeds, whereas dry heat maintained these attributes. The contents of L-dopa, Vc, TP and TF were shown to have strongly positive correlations with antioxidant activity in the leaves, whereas only L-dopa content was positively correlated with antioxidant activity of the seeds. Faba leaves contained relatively high L-dopa which possessed strong antioxidant activity compared to the Vc. As L-dopa is an important contributor to the antioxidant activity of faba leaves and seeds, consuming L-dopa from leaves may provide beneficial effects not only regarding Parkinson's Disease.
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Affiliation(s)
- Shu-Cheng Duan
- Department of Horticultural Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Korea;
| | - Soon-Jae Kwon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea;
| | - Seok-Hyun Eom
- Department of Horticultural Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Korea;
- Correspondence:
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Valyaie A, Azizi M, Kashi A, Sathasivam R, Park SU, Sugiyama A, Motobayashi T, Fujii Y. Evaluation of Growth, Yield, and Biochemical Attributes of Bitter Gourd ( Momordica charantia L.) Cultivars under Karaj Conditions in Iran. PLANTS 2021; 10:plants10071370. [PMID: 34371573 PMCID: PMC8309235 DOI: 10.3390/plants10071370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 12/28/2022]
Abstract
Vegetative and reproductive characteristics, fruit yield, and biochemical compounds of six bitter melon cultivars (Iranshahr, Mestisa, No. 486, Local Japanese, Isfahan, and Ilocano) were evaluated under Karaj conditions in Iran. The phytochemical properties of the cultivars were evaluated using both shade-dried and freeze-dried samples at three fruit developmental stages (unripe, semi-ripe, and ripe). There were significant differences in the vegetative and reproductive characteristics among cultivars, where cv. No. 486 was superior to most vegetative attributes. The fruit yield of cultivars varied from 2.98–5.22 kg/plant. The number of days to male and female flower appearance ranged from 19.00–25.33 and from 25–33 days, respectively. The leaf charantin content was in the range of 4.83–11.08 μg/g. Fruit charantin content varied with developmental stage, drying method, and cultivar. The highest charantin content (13.84 ± 3.55 µg/g) was observed at the semi-ripe fruit stage, and it was much higher in the freeze-dried samples than the shade-dried samples. Cultivar No. 486 had the highest (15.43 ± 2.4 µg/g) charantin content, whereas the lowest charantin content (8.51 ± 1.15 µg/g) was recorded in cultivar cv. Local Japanese. The highest total phenol content (25.17 ± 2.27 mg GAE/g) was recorded in freeze-dried samples of ripe fruits of cv. No. 486, whereas the lowest phenol content was detected in the shade-dried samples of semi-ripe fruits of Isfahan. cv. Flavonoid content was higher with the shade-drying method, irrespective of cultivar. In conclusion, considering the fruit yield and active biological compounds in the studied cultivars, cv. No. 486 should be grown commercially because of its higher yield and production of other secondary metabolites.
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Affiliation(s)
- Akram Valyaie
- Department of Horticulture, Faculty of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj 3149968111, Iran;
| | - Majid Azizi
- Department of Horticulture, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad 9177948978, Iran
- Correspondence: (M.A.); (S.U.P.); Tel.: +98-513-880-5753 (M.A.); +82-42-821-5730 (S.U.P.)
| | - Abdolkarim Kashi
- Department of Horticulture, Faculty of Agriculture and Natural Resources Campus, University of Tehran, Karaj 7787131587, Iran;
| | - Ramaraj Sathasivam
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea;
- Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
- Correspondence: (M.A.); (S.U.P.); Tel.: +98-513-880-5753 (M.A.); +82-42-821-5730 (S.U.P.)
| | - Akifumi Sugiyama
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Kyoto 611-0011, Japan;
| | - Takashi Motobayashi
- Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan; (T.M.); (Y.F.)
| | - Yoshiharu Fujii
- Department of International Environmental and Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan; (T.M.); (Y.F.)
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Hsieh HJ, Lin JA, Chen KT, Cheng KC, Hsieh CW. Thermal treatment enhances the α-glucosidase inhibitory activity of bitter melon (Momordica charantia) by increasing the free form of phenolic compounds and the contents of Maillard reaction products. J Food Sci 2021; 86:3109-3121. [PMID: 34146408 DOI: 10.1111/1750-3841.15798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
Inhibition of α-glucosidase can slow carbohydrate metabolism, which is known as an effective strategy for diabetes treatment. The aim of this study is to evaluate the effect of thermal treatment (50, 60, and 70℃) for 15 days on the α-glucosidase inhibitory activity of bitter melon. The results show that the bitter melon heated at 70℃ for 12 days had the best α-glucosidase inhibitory effect. However, the amount of free polyphenols, 5-hydroxymethyl-2-furfural (5-HMF), and the browning degree of bitter melon generally increased with the time (15 days) and temperature of the thermal treatment, which is positively related to their antioxidant and α-glucosidase inhibitory activities. In conclusion, aged bitter melon shows great α-glucosidase inhibitory activity, which may be related to the increased free form of the involved phenolic compounds and Maillard reaction products. This suggests that thermal processing may be a good way to enhance the application of bitter melon for diabetes treatment. PRACTICAL APPLICATION: The thermal processing of bitter melon provides an application for diabetes treatment. This study demonstrated that heat-treated bitter melon can lower the blood glucose level; therefore, it can be used as a potential anti-hyperglycemic and functional food.
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Affiliation(s)
- Hsin-Jung Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Jer-An Lin
- Graduate Institute of Food Safety, National Chung Hsing University, Taichung, Taiwan
| | - Kai-Ting Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan.,Department of Optometry, Asia University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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7
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Influence of processing methods and storage on phenolic compounds and carotenoids of apricots. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Protective effects of protocatechuic acid against cognitive impairment in an amyloid beta-induced Alzheimer's disease mouse model. Food Chem Toxicol 2020; 144:111571. [DOI: 10.1016/j.fct.2020.111571] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 06/01/2020] [Accepted: 06/27/2020] [Indexed: 01/24/2023]
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9
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O. Elansary H, Szopa A, Klimek-Szczykutowicz M, Jafernik K, Ekiert H, Mahmoud EA, Abdelmoneim Barakat A, O. El-Ansary D. Mammillaria Species-Polyphenols Studies and Anti-Cancer, Anti-Oxidant, and Anti-Bacterial Activities. Molecules 2019; 25:E131. [PMID: 31905725 PMCID: PMC6982789 DOI: 10.3390/molecules25010131] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 12/16/2022] Open
Abstract
Discovering new natural resources of polyphenols is the aim of many recent studies in the field of natural product research. This study tentatively investigated the polyphenols profile of the stems of seven Mammillaria species (M. rhodantha, M. spinosissima, M. hahniana, M. crucigera, M. candida, M. albilanata, and M. muehlenpfordtii) using high performance liquid chromatography with DAD detector (HPLC-DAD) method. Furthermore, the anti-cancer, anti-oxidant, and anti-bacterial potentials of these extracts as well as major identified phenols were explored. The HPLC-DAD study confirmed the availability of six phenolic acids, including gentisic acid, chlorogenic acid, caffeic acid, protocatechuic acid, sinapic acid, and p-hydroxybenzoic acid. The dominant compounds were: gentisic acid in M. rhodantha and M. spinosissima; chlorogenic acid in M. muehlenpfordtii, M. crucigera, and M. rhodantha; and caffeic acid in M. rhodantha, M. crucigera, and M. spinosissima. Stems of Mammillaria sp. showed antiproliferative effects against HeLa, MCF-7, and Jurkat cells. In HeLa and MCF-7 cells, the best antiproliferative activities were found in the treatments with M. rhodantha, M. spinosissima, and M. muehlenpfordtii. The apoptotic assay of M. rhodantha, M. spinosissima, and M. muehlenpfordtii showed accumulation of necrotic cells in the early and late apoptotic phase. M. rhodantha, M. spinosissima, and M. muehlenpfordtii showed the highest anti-oxidant activities using 2,2-diphenyl-1-picrylhydrazyl (DPPH), β-carotene bleaching, and ferric reducing anti-oxidant power (FRAP) assays. M. rhodantha was the best source of antioxidants. Mammillaria sp. showed moderate anti-bacterial effects against bacteria and the highest effects were found using the extracts of M. rhodantha, M. spinosissima, M. crucigera and M. muehlenpfordtii against most bacteria. The anti-bacterial activities were attributed to other phenolic compounds (e.g., chlorogenic acid) than gentisic acid, which was not active against most bacteria. Mammillaria sp. could be considered to be an important natural source of phenolic acids with anti-cancer, anti-bacterial, and anti-oxidant activities.
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Affiliation(s)
- Hosam O. Elansary
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Floriculture, Ornamental Horticulture, and Garden Design Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21527, Egypt
- Department of Geography, Environmental Management, and Energy Studies, University of Johannesburg, APK Campus, Johannesburg 2006, South Africa
| | - Agnieszka Szopa
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland; (A.S.); (M.K.-S.); (K.J.)
| | - Marta Klimek-Szczykutowicz
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland; (A.S.); (M.K.-S.); (K.J.)
| | - Karolina Jafernik
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland; (A.S.); (M.K.-S.); (K.J.)
| | - Halina Ekiert
- Department of Pharmaceutical Botany, Medical College, Jagiellonian University, ul. Medyczna 9, 30-688 Kraków, Poland; (A.S.); (M.K.-S.); (K.J.)
| | - Eman A. Mahmoud
- Department of Food Industries, Damietta University, Damietta 34511, Egypt;
| | - Ahmed Abdelmoneim Barakat
- Botanical Gardens Research Department, Horticultural Research Institute (ARC), Alexandria 12311, Egypt;
| | - Diaa O. El-Ansary
- Precision Agriculture Laboratory, Department of Pomology, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21527, Egypt;
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Kho K, Sim YY, Nyam KL. Antioxidant activities of tea prepared from kenaf (Hibiscus cannabinus L. KR9) leaves at different maturity stages. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00121-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Rohajatien U, Harijono H, Estiasih T, Sriwahyuni E. Bitter Melon (Momordica charantia L) Fruit Decreased Blood Glucose Level and Improved Lipid Profile of Streptozotocin Induced Hyperglycemia Rats. CURRENT RESEARCH IN NUTRITION AND FOOD SCIENCE JOURNAL 2018. [DOI: 10.12944/crnfsj.6.2.11] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Bitter melon (Momordica charantia, L) is a fruit that traditionally believe has benefits on health. The objective of this study is to identify bitter melon bioactive and nutritional compounds, and their effect on blood glucose level and lipid profile of streptozotocin induced hyperglycemia rats. Rats were divided into three group, those were normal group; hyperglycemia group without bitter melon fruit feeding; and hyperglycemia group with bitter melon fruit administration. Hyperglycemia condition was achieved by STZ induction. The experiment was conducted for 4 weeks. The results showed that fresh bitter melon fruit contains β-sitosterol 348.16+1.66 ppm, stigmasterol 183.08+0.8 ppm, campesterol 130.79+0.4 ppm, diosgenin 16.42+0.06 ppm, soluble dietary fiber 2.99+0.07%, insoluble dietary fiber 0.55+0.01%, and pectin 1.41+0.05%. At week 4 of experiment, bitter melon fruit fed hyperglycemia group showed a decrease of 56% blood glucose level compared to blood glucose level at week 0. Body weight of this group also increased. The improvement of lipid profile of bitter melon fed group was indicated by decreasing blood total cholesterol of 49%, triglyceride of 35%, LDL cholesterol of 42%, and increasing HDL of 133% compared to initial level at week 0. Bitter melon also increased fecal cholesterol secretion and effectively inhibited cholesterol absorption in hyperglycemia rats. Bitter melon fruit is suggested for hyperglycemia management due to its ability to reduce glucose and improve lipid profile simultaneously.
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Affiliation(s)
- Ummi Rohajatien
- Faculty of Agriculture, Brawijaya University, Jl. Veteran, Malang, Indonesia
| | - Harijono Harijono
- Department of Food Science and Technology, Brawijaya University, Jl. Veteran, Malang, Indonesia
| | - Teti Estiasih
- Department of Food Science and Technology, Brawijaya University, Jl. Veteran, Malang, Indonesia
| | - Endang Sriwahyuni
- Faculty of Medicine, Brawijaya University, Jl. Veteran, Malang, Indonesia
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Al-Juhaimi F, Ghafoor K, Özcan MM, Jahurul MHA, Babiker EE, Jinap S, Sahena F, Sharifudin MS, Zaidul ISM. Effect of various food processing and handling methods on preservation of natural antioxidants in fruits and vegetables. Journal of Food Science and Technology 2018; 55:3872-3880. [PMID: 30228385 DOI: 10.1007/s13197-018-3370-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/07/2017] [Accepted: 07/31/2018] [Indexed: 10/28/2022]
Abstract
Bioactive compounds from plant sources are generally categorized as natural antioxidants with well-known health benefits. The health-promoting characteristics of natural antioxidants include anti-inflammatory, anti-diabetic, and hepatic effects as well as free radical scavenging. Herein, a comprehensive and comparative review are presented about the effects of conventional (thermal and mechanical) and relatively new (non-thermal) processing methods on phytochemicals and discussed the importance of implementing the use of those methods that could be of very helpful retaining the quality of the bioactive compounds in plant-based foods. Plant-based foods rich in phenolics, vitamin C, carotenoids, and other compounds undergo a range of processing operations before they are consumed. Most of these methods involve thermal treatments of fruits, stems, leaves, and roots. These techniques have varying effects on bioactive compounds and their activities, and the magnitude of these effects depends on process parameters such as temperature, time, and the food matrix. Thermal processing can be detrimental to bioactive compounds while nonthermal procedures may not cause significant deterioration of important health-promoting phytochemicals and in some cases can improve their bio-activity and bio-availability. The detrimental effects of conventional processing on the quality of natural antioxidants have been compared to the effects of innovative nonthermal food treatments such as gamma and ultraviolet irradiation, ultraviolet light, pulsed electric fields, and high hydrostatic pressure.
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Affiliation(s)
- Fahad Al-Juhaimi
- 1Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, PO Box 2460, Riyadh, 11451 Saudi Arabia
| | - Kashif Ghafoor
- 1Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, PO Box 2460, Riyadh, 11451 Saudi Arabia
| | - Mehmet Musa Özcan
- 2Department of Food Engineering, Faculty of Agriculture, Selcuk University, 42079 Konya, Turkey
| | - M H A Jahurul
- 4Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, 884000 Kota Kinabalu, Sabah Malaysia
| | - Elfadil E Babiker
- 1Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, PO Box 2460, Riyadh, 11451 Saudi Arabia
| | - S Jinap
- 5Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia.,6Institute Food Safety and Food Integrity (FOSFI),Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Malaysia
| | - F Sahena
- 7Faculty of Science, International Islamic University Malaysia (IIUM), Kuantan Campus, 25200 Kuantan, Pahang Malaysia
| | - M S Sharifudin
- 4Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, 884000 Kota Kinabalu, Sabah Malaysia
| | - I S M Zaidul
- 3Faculty of Pharmacy, International Islamic University, Kuantan Campus, 25200 Kuantan, Pahang Malaysia
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Phahom T, Phoungchandang S, Kerr WL. Effects of steam-microwave blanching and different drying processes on drying characteristics and quality attributes of Thunbergia laurifolia Linn. leaves. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:3211-3219. [PMID: 27925210 DOI: 10.1002/jsfa.8167] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Dried Thunbergia laurifolia leaves are usually prepared using tray drying, resulting in products that have lost substantial amounts of bioactive compounds and antioxidant activity. The maturity of the raw material, blanching techniques and drying methods were investigated in order to select the best condition to produce high qualities of dried T. laurifolia leaves. RESULTS The 1st stage of maturity was selected and steam-microwave blanching (SMB) for 4 min was adequate for blanching leading to the maximum recovery of bioactive compounds. The modified Halsey model was the best desorption isotherm model. A new drying model proposed in this study was the best to fit the drying curves as compared to five common drying models. Moisture diffusivities were increased with the increase of drying temperature when combining SMB and heat pump-dehumidified drying. Microwave heat pump-dehumidified drying (MHPD) provided the shortest drying time, high specific moisture extraction rate (SMER) and could reduce drying time by 67.5% and increase caffeic acid and quercetin by 51.24% and 60.89%, respectively. CONCLUSION MHPD was found to be the best drying method and provided the highest antioxidant activity and bioactive compounds content, high SMER and short drying time. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Traiphop Phahom
- Department of Food Technology, Khon Kaen University, Muang, Khon Kaen 40002, Thailand
| | | | - William L Kerr
- Department of Food Science and Technology, University of Georgia, Athens, Georgia 30602, USA
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Kuguacin J isolated from bitter melon leaves modulates paclitaxel sensitivity in drug-resistant human ovarian cancer cells. J Nat Med 2017. [PMID: 28639112 DOI: 10.1007/s11418-017-1099-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We previously reported the multidrug resistance-reversing ability of kuguacin J (KJ) in cervical cancer cells via the inhibition of P-glycoprotein (P-gp) function. This study investigated whether KJ could promote cisplatin- and paclitaxel (PTX)-induced cancer cell death in drug-resistance human ovarian cancer cells (SKOV3). Cytotoxicity testing showed that SKOV3 was more resistant to cisplatin and PTX compared to drug-sensitive human ovarian cancer cells (A2780). The cytotoxicity of PTX was significantly increased in SKOV3 cells when co-treated with KJ. We found that enhancement of PTX toxicity in the cells was not related to P-gp inhibition. To elucidate the mechanism by which KJ increases PTX sensitivity, the expression of cell death involving proteins was analyzed by Western blot analysis. The results showed that PTX treatment increased the level of an anti-apoptotic protein, survivin, which may be involved in drug resistance in SKOV3. The co-treatment with PTX and KJ dramatically decreased the level of survivin and markedly induced cleavage of PARP and caspase-3, which are apoptotic-induced molecules. These findings may support the use of KJ as an effective chemosensitizer in combination with conventional chemotherapy to promote PTX sensitization in ovarian cancer patients.
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Poolperm S, Jiraungkoorskul W. An Update Review on the Anthelmintic Activity of Bitter Gourd, Momordica charantia. Pharmacogn Rev 2017; 11:31-34. [PMID: 28503051 PMCID: PMC5414453 DOI: 10.4103/phrev.phrev_52_16] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Momordica charantia (Family: Cucurbitales), as known as bitter melon or gourd, is a daily consumption as food and traditional medicinal plant in Southeast Asia and Indo-China. It has been shown to possess anticancer, antidepressant, antidiabetic, anti-inflammatory, antimicrobial, antiobesity, antioxidant, and antiulcer properties. Its common phytochemical components include alkaloids, charantin, flavonoids, glycosides, phenolics, tannins, and terpenoids. This plant is rich in various saponins including momordicin, momordin, momordicoside, karavilagenin, karaviloside, and kuguacin, all of which have been reported to contribute to its remedial properties including antibacterial, antifungal, antiviral, and antiparasitic infections. Based on established literature on the anthelmintic activity of M. charantia and possible mode of action, this review article has attempted to compile M. charantia could be further explored for the development of potential anthelmintic drug.
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Affiliation(s)
- Sutthaya Poolperm
- Mahidol University International College, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Wannee Jiraungkoorskul
- Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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16
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Yung MMH, Ngan HYS, Chan DW. Targeting AMPK signaling in combating ovarian cancers: opportunities and challenges. Acta Biochim Biophys Sin (Shanghai) 2016; 48:301-17. [PMID: 26764240 PMCID: PMC4886241 DOI: 10.1093/abbs/gmv128] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/29/2015] [Indexed: 12/25/2022] Open
Abstract
The development and strategic application of effective anticancer therapies have turned out to be one of the most critical approaches of managing human cancers. Nevertheless, drug resistance is the major obstacle for clinical management of these diseases especially ovarian cancer. In the past years, substantial studies have been carried out with the aim of exploring alternative therapeutic approaches to enhance efficacy of current chemotherapeutic regimes and reduce the side effects caused in order to produce significant advantages in overall survival and to improve patients' quality of life. Targeting cancer cell metabolism by the application of AMP-activated protein kinase (AMPK)-activating agents is believed to be one of the most plausible attempts. AMPK activators such as 5-aminoimidazole-4-carboxamide 1-β-d-ribofuranoside, A23187, metformin, and bitter melon extract not only prevent cancer progression and metastasis but can also be applied as a supplement to enhance the efficacy of cisplatin-based chemotherapy in human cancers such as ovarian cancer. However, because of the undesirable outcomes along with the frequent toxic side effects of most pharmaceutical AMPK activators that have been utilized in clinical trials, attentions of current studies have been aimed at the identification of replaceable reagents from nutraceuticals or traditional medicines. However, the underlying molecular mechanisms of many nutraceuticals in anticancer still remain obscure. Therefore, better understanding of the functional characterization and regulatory mechanism of natural AMPK activators would help pharmaceutical development in opening an area to intervene ovarian cancer and other human cancers.
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Affiliation(s)
- Mingo M H Yung
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hextan Y S Ngan
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - David W Chan
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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17
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Huang WC, Tsai TH, Huang CJ, Li YY, Chyuan JH, Chuang LT, Tsai PJ. Inhibitory effects of wild bitter melon leaf extract on Propionibacterium acnes-induced skin inflammation in mice and cytokine production in vitro. Food Funct 2015; 6:2550-60. [PMID: 26098998 DOI: 10.1039/c5fo00550g] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Propionibacterium acnes is a key pathogen involved in acne inflammation. Wild bitter melon (WBM, Momordica charantia L. var. abbreviate Seringe) is consumed as both a vegetable and as folk medicine in Taiwan. We examined the inhibitory activity of the total phenolic extract (TPE) of WBM leaf on P. acnes-induced inflammatory responses in vivo and in vitro. Our data showed that TPE significantly attenuated P. acnes-induced ear swelling in mice along with microabscess. Flow cytometry analysis revealed that TPE treatment significantly decreased the migration of neutrophils and interleukin (IL)-1β(+) populations in vivo. In P. acnes-stimulated human monocytic THP-1 cells, TPE suppressed the mRNA levels and production of IL-8, IL-1β, and tumor necrosis factor (TNF)-αin vitro. In addition, TPE suppressed P. acnes-induced matrix metalloproteinase-9 levels. TPE blocked nuclear factor-κB (NF-κB) activation and inactivated mitogen-activated protein kinases (MAPK); these actions may partially account for its inhibitory effect on cytokine production. The quantitative HPLC analysis revealed gallic, chlorogenic, caffeic, ferulic, and cinnamic acids, myricetin, quercetin, luteolin, apigenin, and thymol in TPE. All these phenolics significantly suppressed P. acnes-induced IL-8 production in vitro. Our results suggest that WBM leaf extract effectively inhibits P. acnes-induced inflammatory responses and may be useful to relieve the inflammation of acne.
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Affiliation(s)
- Wen-Cheng Huang
- Department of Human Development and Family Studies, National Taiwan Normal University, Taipei, Taiwan.
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Tsai TH, Huang CJ, Wu WH, Huang WC, Chyuan JH, Tsai PJ. Antioxidant, cell-protective, and anti-melanogenic activities of leaf extracts from wild bitter melon (Momordica charantia Linn. var. abbreviata Ser.) cultivars. BOTANICAL STUDIES 2014; 55:78. [PMID: 28510957 PMCID: PMC5432827 DOI: 10.1186/s40529-014-0078-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 11/25/2014] [Indexed: 06/07/2023]
Abstract
BACKGROUND Several wild bitter melon (WBM; Momordica charantia Linn. var. abbreviata Ser.) cultivars were developed in Taiwan. However, little information is available regarding biological function of WBM leaf. Therefore, the objectives of this study were to investigate the nutrient content, antioxidant, cell protection and anti-melanogenic properties of wild bitter melon leaf. RESULTS Methanolic leaf extracts were prepared from a variety and two cultivars of WBM. All extracts exerted potent nitric oxide and hydroxyl radical scavenging capacities. Furthermore, all extracts effectively reduce the production of reactive oxygen species and prevent cell death in UVB-irradiated HaCaT keratinocytes. The cell protective effect of leaf extract was also investigated by the prevention of HaCaT cells from sodium nitroprusside or menadione-induced toxicity, and significant cyto-protective activities were observed for all of them. Additionally, all extracts significantly suppressed tyrosinase activity and melanin levels in B16-F10 melanocytes. CONCLUSIONS WBM leaf extract showed significant antioxidant, cyto-protective and anti-melanogenic activities. These findings suggested that WBM leaves may be beneficial for preventing the photo-oxidative damage and melanogenesis of skin.
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Affiliation(s)
- Tsung-Hsien Tsai
- Department of Dermatology, Taipei Municipal Wan Fang Hospital and Taipei Medical University, Taipei, Taiwan
| | - Ching-Jang Huang
- Institute of Microbiology and Biochemistry, and Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Wen-Huey Wu
- Department of Human Development and Family Studies, National Taiwan Normal University, 162 Hoping E. Rd., Sec. 1, Taipei, 10610 Taiwan
| | - Wen-Cheng Huang
- Department of Human Development and Family Studies, National Taiwan Normal University, 162 Hoping E. Rd., Sec. 1, Taipei, 10610 Taiwan
| | - Jong-Ho Chyuan
- Hualien District Agricultural Research and Extension Station, Hualien, Taiwan
| | - Po-Jung Tsai
- Department of Human Development and Family Studies, National Taiwan Normal University, 162 Hoping E. Rd., Sec. 1, Taipei, 10610 Taiwan
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Martí R, Valcárcel M, Herrero-Martínez JM, Cebolla-Cornejo J, Roselló S. Fast simultaneous determination of prominent polyphenols in vegetables and fruits by reversed phase liquid chromatography using a fused-core column. Food Chem 2014; 169:169-79. [PMID: 25236213 DOI: 10.1016/j.foodchem.2014.07.151] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 07/16/2014] [Accepted: 07/30/2014] [Indexed: 11/27/2022]
Abstract
A reversed-phase high-performance liquid chromatography method with photodiode array detection has been developed enabling the joint determination of 17 prominent flavonoids and phenolic acids in vegetables and fruits. A multi-segmented gradient program using a fused-core column for the separation of several phenolic classes (phenolic acids and flavonoids) has been optimised. The influence of extraction conditions (sample freeze-drying, ultrasound extraction, solvent composition and extraction time) has been also optimised using response surface methodology with tomato samples as a model. Complete recoveries (76-108%) were obtained for the phenolic compounds present in tomato. The developed method provided satisfactory repeatability in terms of peak area (RSD<2.9%) and retention time (RSD<0.2%) both for standards and real samples. Detection limits ranged between 3 and 44μgkg(-1) for the detected polyphenols. This method is recommended for routine analysis of large number of samples typical of production quality systems or plant breeding programs.
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Affiliation(s)
- Raúl Martí
- Department de Ciències Agràries i del Medi Natural, Universitat Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain
| | - Mercedes Valcárcel
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Cno. de Vera s/n, 46022 València, Spain
| | | | - Jaime Cebolla-Cornejo
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Cno. de Vera s/n, 46022 València, Spain
| | - Salvador Roselló
- Department de Ciències Agràries i del Medi Natural, Universitat Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain.
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Li DJ, Song JF, Liu CQ. Kinetic Stability of Lutein in Freeze-Dried Sweet Corn Powder Stored under Different Conditions. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.65] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tuan PA, Kim JK, Lee S, Chae SC, Park SU. Riboflavin accumulation and characterization of cDNAs encoding lumazine synthase and riboflavin synthase in bitter melon (Momordica charantia). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:11980-11986. [PMID: 23153065 DOI: 10.1021/jf3036963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Riboflavin (vitamin B2) is the universal precursor of the coenzymes flavin mononucleotide and flavin adenine dinucleotide--cofactors that are essential for the activity of a wide variety of metabolic enzymes in animals, plants, and microbes. Using the RACE PCR approach, cDNAs encoding lumazine synthase (McLS) and riboflavin synthase (McRS), which catalyze the last two steps in the riboflavin biosynthetic pathway, were cloned from bitter melon (Momordica charantia), a popular vegetable crop in Asia. Amino acid sequence alignments indicated that McLS and McRS share high sequence identity with other orthologous genes and carry an N-terminal extension, which is reported to be a plastid-targeting sequence. Organ expression analysis using quantitative real-time RT PCR showed that McLS and McRS were constitutively expressed in M. charantia, with the strongest expression levels observed during the last stage of fruit ripening (stage 6). This correlated with the highest level of riboflavin content, which was detected during ripening stage 6 by HPLC analysis. McLS and McRS were highly expressed in the young leaves and flowers, whereas roots exhibited the highest accumulation of riboflavin. The cloning and characterization of McLS and McRS from M. charantia may aid the metabolic engineering of vitamin B2 in crops.
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Affiliation(s)
- Pham Anh Tuan
- Department of Crop Science, College of Agriculture and Life Sciences, Chungnam National University, 99 Daehangno, Yuseong-gu, Daejeon 305-764, Korea
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Pitchakarn P, Suzuki S, Ogawa K, Pompimon W, Takahashi S, Asamoto M, Limtrakul P, Shirai T. Induction of G1 arrest and apoptosis in androgen-dependent human prostate cancer by Kuguacin J, a triterpenoid from Momordica charantia leaf. Cancer Lett 2011; 306:142-50. [PMID: 21429659 DOI: 10.1016/j.canlet.2011.02.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 02/05/2011] [Accepted: 02/28/2011] [Indexed: 11/29/2022]
Abstract
In this study, we focused on the effects of a bitter melon (Momordica charantia) leaf extract (BMLE) and a purified component, Kuguacin J (KuJ), on androgen-dependent LNCaP human prostate cancer cells. Both treatments exerted growth inhibition through G1 arrest and induction of apoptosis. In addition, KuJ markedly decreased the levels of cyclins (D1 and E), cyclin-dependent kinases (Cdk2 and Cdk4) and proliferating cell nuclear antigen, and caused an increase in p21 and p27 levels. Its induction of apoptosis was accompanied by an increase in cleavage of caspase-3 and poly (ADP-ribose) polymerase, attributable to augment of Bax/Bcl-2 and Bad/Bcl-xL and reduction of survivin levels. BMLE and KuJ also reduced the expression of androgen receptor (AR), prostate-specific antigen (PSA) while induced P53 protein level. Down-regulation of p53 by RNA interference indicated that BMLE and KuJ inhibited cell growth partly through p53-dependent cell cycle arrest and apoptotic pathways. Both BMLE and KuJ caused less toxicity in a normal prostate cell line, PNT1A. Our results suggest that BMLE and a purified component, KuJ, from its diethyl ether fraction could be promising candidate new antineoplastic and chemopreventive agents for androgen-dependent prostate cancer and carcinogenesis.
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Affiliation(s)
- Pornsiri Pitchakarn
- Department of Experimental Pathology and Tumor Biology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan
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Tuan PA, Kim JK, Park NI, Lee SY, Park SU. Carotenoid content and expression of phytoene synthase and phytoene desaturase genes in bitter melon (Momordica charantia). Food Chem 2010; 126:1686-92. [PMID: 25213945 DOI: 10.1016/j.foodchem.2010.12.058] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 11/04/2010] [Accepted: 12/08/2010] [Indexed: 01/11/2023]
Abstract
Momordica charantia, a tropical plant, produces a fruit that has a β-carotene concentration five times higher than that of carrot. To elucidate the molecular basis of β-carotene accumulation in M. charantia, the gene expression levels of phytoene synthase (McPSY) and phytoene desaturase (McPDS) were determined. These levels were particularly high in the flowers of M. charantia. During fruit maturation, the expression levels of McPSY and McPDS decreased during the mid-stages but increased in the fully mature fruit. In addition, carotenoids accumulated as the peel changed from green to orange. Thus, McPSY and McPDS expression correlated with carotenoid accumulation during fruit maturation. Principal component analysis (PCA) also was used to evaluate the differences among the profiles of seven carotenoids identified in the fruit at several maturation stages. Riper fruits had higher carotenoid concentrations than less ripe fruits.
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Affiliation(s)
- Pham Anh Tuan
- Department of Crop Science, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Jae Kwang Kim
- National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Republic of Korea
| | - Nam Il Park
- Department of Crop Science, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Sook Young Lee
- Medical Device Clinical Center, Chosun University, 375 Seosuk-Dong, Dong-Gu, Gwangju 501-759, Republic of Korea.
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 220 Gung-Dong, Yuseong-Gu, Daejeon 305-764, Republic of Korea.
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Pitchakarn P, Ogawa K, Suzuki S, Takahashi S, Asamoto M, Chewonarin T, Limtrakul P, Shirai T. Momordica charantia leaf extract suppresses rat prostate cancer progression in vitro and in vivo. Cancer Sci 2010; 101:2234-40. [PMID: 20731662 PMCID: PMC11158121 DOI: 10.1111/j.1349-7006.2010.01669.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cancer metastasis is a major cause of death in cancer patients, with invasion as a first step greatly contributing to the failure of clinical treatments. Any compounds with an inhibitory influence on this process are therefore of prime interest. Momordica charantia (bitter melon) is widely consumed as a vegetable and especially as a folk medicine in Asia. Here, we investigated the anti-invasive effects of bitter melon leaf extract (BMLE) on a rat prostate cancer cell line (PLS10) in vitro and in vivo. The results indicated that non-toxic concentrations of BMLE significantly inhibited the migration and invasion of cells in vitro. The results of zymography showed that BMLE inhibited the secretion of MMP-2, MMP-9 and urokinase plasminogen activator (uPA) from PLS10. Real-time RT-PCR revealed that BMLE not only significantly decreased gene expression of MMP-2 and MMP-9, but also markedly increased the mRNA level of TIMP-2, known to have inhibitory effects on the activity of MMP-2. An EnzChek gelatinase/collagenase assay showed that collagenase type IV activity was partially inhibited by BMLE. In the in vivo study, intravenous inoculation of PLS10 to nude mice resulted in a 100% survival rate in the mice given a BMLE-diet as compared with 80% in the controls. The incidence of lung metastasis did not show any difference, but the percentage lung area occupied by metastatic lesions was slightly decreased in the 0.1% BMLE treatment group and significantly decreased with 1% BMLE treatment as compared with the control. Thus, the results indicate for the first time an anti-metastatic effect of BMLE both in vitro and in vivo.
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Affiliation(s)
- Pornsiri Pitchakarn
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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