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Ethanol-Induced Hepatotoxicity and Alcohol Metabolism Regulation by GABA-Enriched Fermented Smilax china Root Extract in Rats. Foods 2021; 10:foods10102381. [PMID: 34681429 PMCID: PMC8535858 DOI: 10.3390/foods10102381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/30/2021] [Accepted: 10/03/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic alcohol consumption can cause hepatic injury and alcohol-induced toxicities. Extracts from Smilax china root have been widely used in traditional medicine and for their potential pharmacological benefits. We aimed to determine if fermented Smilax china extract (FSC) regulates alcoholic fatty liver and liver injury using two in vivo experiments. Sprague-Dawley rats were administered ethanol (3 g/kg b.w.; po) with or without FSC pretreatment to induce an acute hangover. In another experiment, rats were fed either a normal or Lieber-DeCarli ethanol (6.7%) diet with or without FSC pretreatment (125, 250, and 500 mg/kg b.w.; po) for 28 days. Serum biomarkers, liver histopathology, and the mRNA levels of anti-inflammatory, antioxidant, lipogenic, and lipolytic genes were analyzed. FSC pretreatment significantly reduced blood alcohol and acetaldehyde concentrations, upregulated the mRNA expression of alcohol dehydrogenase, aldehyde dehydrogenase, and superoxide dismutase, and decreased the activities of liver enzymes in a dose-dependent manner. It also downregulated SERBP-1c and upregulated PPAR-α and reduced the gene expression of the anti-inflammatory cytokine IL-6 in the liver. The final extract after fermentation had increased GABA content. Furthermore, FSC was found to be safe with no acute oral toxicity in female rats. Thus, FSC increases alcohol metabolism and exhibits antioxidant and anti-inflammatory effects to induce hepatoprotection against alcohol-induced damage. It may be used as a functional food ingredient after excess alcohol consumption.
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Likhitwitayawuid K. Oxyresveratrol: Sources, Productions, Biological Activities, Pharmacokinetics, and Delivery Systems. Molecules 2021; 26:4212. [PMID: 34299485 PMCID: PMC8307110 DOI: 10.3390/molecules26144212] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/18/2022] Open
Abstract
Oxyresveratrol has recently attracted much research attention due to its simple chemical structure and diverse therapeutic potentials. Previous reviews describe the chemistry and biological activities of this phytoalexin, but additional coverage and greater accessibility are still needed. The current review provides a more comprehensive summary, covering research from 1955 to the present year. Oxyresveratrol occurs in both gymnosperms and angiosperms. However, it has never been reported in plants in the subclass Sympetalae, and this point might be of both chemotaxonomic and biosynthetic importance. Oxyresveratrol can be easily obtained from plant materials by conventional methods, and several systems for both qualitative and quantitative analysis of oxyresveratrol contents in plant materials and plant products are available. Oxyresveratrol possesses diverse biological and pharmacological activities such as the inhibition of tyrosinase and melanogenesis, antioxidant and anti-inflammatory activities, and protective effects against neurological disorders and digestive ailments. However, the unfavorable pharmacokinetic properties of oxyresveratrol, including low water solubility and poor oral availability and stability, have posed challenges to its development as a useful therapeutic agent. Recently, several delivery systems have emerged, with promising outcomes that may improve chances for the clinical study of oxyresveratrol.
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Affiliation(s)
- Kittisak Likhitwitayawuid
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
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Using Phytochemicals to Investigate the Activation of Nicotine Detoxification via Upregulation of CYP2A6 in Animal Models Exposed Tobacco Smoke Condensate by Intratracheal Instillation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:7635197. [PMID: 30662513 PMCID: PMC6313994 DOI: 10.1155/2018/7635197] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/22/2018] [Indexed: 01/04/2023]
Abstract
This study examined the efficacy of standardized Smilax china L. root extract (SSCR) containing chlorogenic acid on detoxifying nicotine from tobacco smoke condensate (TSC) in vitro and in vivo. Chlorogenic acid is an identified bioactive component in SSCR by ultraperformance liquid chromatography/photodiode array/electrospray ionization/mass spectroscopy (UPLC/PDA/ESI/MS). HepG2 liver cells and A549 lung cells were carried for measuring ROS and antioxidant enzymes. Sprague-Dawley rats were treated with nicotine by intratracheal instillation (ITI). Cell viabilities by pretreatments of 5, 12.5, and 25, 50 μg SSCR/mL ranged from 41 to 76% in HepG2 and 65 to 95% in A549. Pretreatments of SSCR inhibited TSC-mediated production of reactive oxygen species (ROS) by 8 and 10% in HepG2 and A549 cells, respectively. However, the expression of CAT, SOD1, and AOX1 was downregulated by SSCR in the both cells. The highest conversion of cotinine was observed at 50 μg/mL of SSCR after 120 min of incubation. SSCR upregulated CYP2A6 3-fold in A549 cells regardless of TSC cotreatment. When Sprague-Dawley rats were treated with nicotine by ITI or subjected to SSCR administration for 14 days, the levels of cotinine in urine increased in SSCR treatment only. The cellular level of antioxidant capacity at 10 or 100 mg/kg body weight/day of SSCR treatment was 1.89 and 1.86 times higher than those of nicotine-control. Results suggest that the intake of SSCR can detoxify nicotine by elevating nicotine conversion to cotinine and antioxidant capacity.
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Navarro G, Martínez-Pinilla E, Ortiz R, Noé V, Ciudad CJ, Franco R. Resveratrol and Related Stilbenoids, Nutraceutical/Dietary Complements with Health-Promoting Actions: Industrial Production, Safety, and the Search for Mode of Action. Compr Rev Food Sci Food Saf 2018; 17:808-826. [PMID: 33350112 DOI: 10.1111/1541-4337.12359] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/17/2018] [Accepted: 03/29/2018] [Indexed: 12/11/2022]
Abstract
This paper reviews the potential of stilbenoids as nutraceuticals. Stilbenoid compounds in wine are considered key factors in health-promoting benefits. Resveratrol and resveratrol-related compounds are found in a large diversity of vegetal products. The stilbene composition varies from wine to wine and from one season to another. Therefore, the article also reviews how food science and technology and wine industry may help in providing wines and/or food supplements with efficacious concentrations of stilbenes. The review also presents results from clinical trials and those derived from genomic/transcriptomic studies. The most studied stilbenoid, resveratrol, is a very safe compound. On the other hand, the potential benefits of stilbene intake are multiple and are apparently due to downregulation more than upregulation of gene expression. The field may take advantage from identifying the mechanism of action(s) and from providing useful data to show evidence for specific health benefits in a given tissue or for combating a given disease.
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Affiliation(s)
- Gemma Navarro
- CIBERNED, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Inst. de Salud Carlos III, Madrid, Spain.,Inst. of Biomedicine of the Univ. of Barcelona (IBUB), Barcelona, Spain.,Dept. of Biochemistry and Molecular Biomedicine, Faculty of Biology, Univ. of Barcelona, Barcelona, Spain
| | - Eva Martínez-Pinilla
- Dept. of Morphology and Cell Biology, Faculty of Medicine, Univ. of Oviedo, Asturias, Spain.,Inst. de Neurociencias del Principado de Asturias (INEUROPA), Facultad de Psicología, Univ. de Oviedo, Plaza Feijóo s/n, 33003 Oviedo, Asturias, Spain.,Inst. de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Asturias, Spain
| | - Raquel Ortiz
- Dept. of Biochemistry and Molecular Biomedicine, Faculty of Biology, Univ. of Barcelona, Barcelona, Spain
| | - Véronique Noé
- Dept. of Biochemistry and Physiology, School of Pharmacy, Univ. of Barcelona, Barcelona, Spain.,Inst. of Nanotechnology of the Univ. of Barcelona (IN2UB), Barcelona, Spain
| | - Carlos J Ciudad
- Dept. of Biochemistry and Physiology, School of Pharmacy, Univ. of Barcelona, Barcelona, Spain.,Inst. of Nanotechnology of the Univ. of Barcelona (IN2UB), Barcelona, Spain
| | - Rafael Franco
- CIBERNED, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Inst. de Salud Carlos III, Madrid, Spain.,Inst. of Biomedicine of the Univ. of Barcelona (IBUB), Barcelona, Spain.,Dept. of Biochemistry and Molecular Biomedicine, Faculty of Biology, Univ. of Barcelona, Barcelona, Spain
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Tabanca N, Ali Z, Bernier UR, Epsky N, Nalbantsoy A, Khan IA, Ali A. Bioassay-guided isolation and identification of Aedes aegypti larvicidal and biting deterrent compounds from Veratrum lobelianum. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractAn ethanol extract fromVeratrum lobelianumBernh. rhizomes showed larvicidal activity with LC50values of 11.79 ppm and 89.9 ppm against 1stand 4thinstar larvae, respectively, at 24 h post-treatment. The extract also showed proportion not biting (PNB) value of 0.76 at 100 μg/cm2against females ofAe.aegypti. Systematic bioassay-guided fractionation ofV.lobelianumextract resulted in the isolation of five compounds that were identified as ethyl palmitate (1), ethyl linoleate (2), β-sitosterol (3), resveratrol (4) and oxyresveratrol (5) by GC-MS,1H-NMR, and13C-NMR techniques, comparison with literature data, and confirmation with authentic compounds. Compound2exhibited larvicidal activity with an LC50value of 24.1 (22.0-26.2) ppm whereas1was inactive. β-Sitosterol (3) displayed the highest larvicidal activity with LC50= 1.7 (1.3-12.3) ppm and LC90= 5.1 (3.4-13.8) ppm. Compounds4and5had larvicidal activity with LC50values of 18.5 (15.3-23.3) and 22.6 (19.0-26.8) ppm, respectively, and had an equivalent PNB values of 0.75 at 25 nmol/cm2. In addition,4and5were explored for their human-based repellency againstAe.aegypti, attractiveness against male medfliesCeratitis capitata, and also evaluated against series of human carcinoma cells (A549, HEK293, HeLa, SH-SY5Y); however, no significant activity was found.
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Affiliation(s)
- Nurhayat Tabanca
- National Center for Natural Products Research, The University of Mississippi, University, MS 38677, USA
- USDA-ARS, Subtropical Horticulture Research Station, Miami, FL 33158, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, The University of Mississippi, University, MS 38677, USA
| | - Ulrich R. Bernier
- USDA-ARS, Center for Medical, Agricultural, and Veterinary Entomology, Gainesville, FL 32608, USA
| | - Nancy Epsky
- USDA-ARS, Subtropical Horticulture Research Station, Miami, FL 33158, USA
| | - Ayse Nalbantsoy
- Ege University, Faculty of Engineering, Department of Bioengineering, Bornova, Izmir, 35100, Turkey
| | - Ikhlas A. Khan
- National Center for Natural Products Research, The University of Mississippi, University, MS 38677, USA
| | - Abbas Ali
- National Center for Natural Products Research, The University of Mississippi, University, MS 38677, USA
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Distinguishing Smilax glabra and Smilax china rhizomes by flow-injection mass spectrometry combined with principal component analysis. ACTA PHARMACEUTICA 2018; 68:87-96. [PMID: 29453916 DOI: 10.2478/acph-2018-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/25/2017] [Indexed: 11/20/2022]
Abstract
Flow-injection mass spectrometry (FIMS) coupled with a chemometric method is proposed in this study to profile and distinguish between rhizomes of Smilax glabra (S. glabra) and Smilax china (S. china). The proposed method employed an electrospray-time-of-flight MS. The MS fingerprints were analyzed using principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) with the aid of SIMCA software. Findings showed that the two kinds of samples perfectly fell into their own classes. Further predictive study showed desirable predictability and the tested samples were successfully and reliably identified. The study demonstrated that the proposed method could serve as a powerful tool for distinguishing between S. glabra and S. china.
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Son YR, Choi EH, Kim GT, Park TS, Shim SM. Bioefficacy of Graviola leaf extracts in scavenging free radicals and upregulating antioxidant genes. Food Funct 2016; 7:861-71. [PMID: 26674326 DOI: 10.1039/c5fo01258a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aims of this study were to determine bioactive components of Graviola leaf extracts and to examine the radical scavenging capacity, gene expression and transcription factors of antioxidant enzymes. Rutin, kaempferol-rutinoside, and vitamin U were identified from the steaming and 50% EtOH extracts of Graviola leaves. Graviola leaf extracts effectively scavenged peroxy and nitrogen radicals. 50% EtOH of Graviola leaves provided a 1-2.9 times higher trolox equivalent than the steaming extract. It also had a higher VCEAC. Graviola leaf extracts reduced the generation of reactive oxygen species (ROS) induced by H2O2 in a dose-dependent manner. The 50% EtOH extract of Graviola leaves upregulated SOD1 and Nrf2, but catalase and HMOX1 were not altered by the 50% EtOH extract of Graviola leaves.
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Affiliation(s)
- Yu-Ra Son
- Department of Food Science and Technology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 143-747, Republic of Korea.
| | - Eun-Hye Choi
- Department of Food Science and Technology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 143-747, Republic of Korea.
| | - Goon-Tae Kim
- Department of Life Science, Gachon University, Bokjung-dong, Sujung-gu, Sungnam-Si, Gyeonggi-do, 461-701, Republic of Korea.
| | - Tae-Sik Park
- Department of Life Science, Gachon University, Bokjung-dong, Sujung-gu, Sungnam-Si, Gyeonggi-do, 461-701, Republic of Korea.
| | - Soon-Mi Shim
- Department of Food Science and Technology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul, 143-747, Republic of Korea.
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Zhou L, Li S, Zhang T, Mu W, Jiang B. Properties of a novel polydatin-β-d-glucosidase from Aspergillus niger SK34.002 and its application in enzymatic preparation of resveratrol. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:2588-2595. [PMID: 26381723 DOI: 10.1002/jsfa.7465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/12/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Resveratrol and its glucoside polydatin are the main stilbenes in Polygonum cuspidatum. Resveratrol has become the subject of intensive research over the past two decades owing to its outstanding pharmacological properties. However, its lower concentration in plants compared to polydatin limits its application. In this study, the polydatin-β-d-glucosidase (PBG) that hydrolyzes the β-d-glucosyl residue of polydatin with release of resveratrol was purified to homogeneity and characterized. RESULTS The molecular weight of PBG was estimated to be 125 kDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and 128 kDa by size-exclusion chromatography- multi-angle laser light scattering/ultraviolet/refractive index. The optimal PBG activity was observed at 70 °C and pH 4.5. The enzyme showed around 50% stability at 60 °C for 12 h and residual activity was over 80% at pH 3.0-5.0. Ca(2+) , Mg(2+) , Mn(2+) , Zn(2+) , Ba(2+) , Ni(2+) , Co(2+) and Cu(2+) ions had no significant effect on the enzyme activity. The PBG presented higher affinity to polydatin (Km = 0.74 mmol L(-1) ) than p-nitrophenyl-β-d-glucopyranoside (Km = 2.9 mmol L(-1) ) and cellobiose (Km = 8.9 mmol L(-1) ). CONCLUSION With this enzyme, nearly all polydatin in P. cuspidatum was converted to resveratrol. Although several β-D-glucosidases (BGLs) have been obtained from other sources, PBG is distinguished from other BGLs by its outstanding thermal stability and high catalytic efficiency. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Linfang Zhou
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
- Department of Textile and Dyeing Engineering, Jiangsu College of Engineering and Technology, Nantong, 226007, Jiangsu, China
| | - Shuhua Li
- Department of Textile and Dyeing Engineering, Jiangsu College of Engineering and Technology, Nantong, 226007, Jiangsu, China
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Bo Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, Jiangsu, China
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Ki NY, Park EJ, Sung IS, Ju SA, Kim KU, Kim MR, Song DY, Lee MJ, Kim HS, Kang BH, Chung HJ, Choi EJ, Yoon KH, Lee MW, Yun S, Min B, Kwon SH, Shin HS. The Hot-Water Extract of Smilacis Chinae Rhizome Suppresses 2,4-Dinitrochlorobenzene and House Dust Mite-Induced Atopic Dermatitis-Like Skin Lesions in Mice. Phytother Res 2016; 30:636-45. [PMID: 26840656 DOI: 10.1002/ptr.5573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 11/29/2015] [Accepted: 12/21/2015] [Indexed: 11/12/2022]
Abstract
Smilacis Chinae Rhizome (SCR) has been used as an oriental folk medicine for various biological activities. However, its effect on atopic dermatitis (AD) remains undetermined to date. We assessed the effect of orally administered hot-water extract of SCR on AD-like skin lesions in mice and its underlying mechanisms. AD-like murine model was prepared by repeated alternate application of house dust mite (Dermatophagoides farinae) extract (DFE) and 2,4-dinitrochlorobenzene (DNCB) for 4 weeks, topically to the ears. Daily oral administration of SCR for 3 and 4 weeks significantly reduced inflammatory ear thickening, with the effect being enhanced at the earlier start and longer period of administration. This effect was accompanied by a significant decrease in both Th2 and Th1 serum antibodies (total IgE, DFE-specific IgE, and IgG2a). Histological analysis showed that SCR markedly decreased the epidermal/dermal ear thickening and the dermal infiltration of inflammatory cells. Furthermore, SCR suppressed DFE/DNCB-induced expression of IL-4, IL-13, IL-17, IL-18, TSLP, and IFN-γ genes in the ear tissue. Taken together, our observations demonstrate that chronic oral administration of SCR exerts beneficial effect in mouse AD model, suggesting that SCR has the therapeutic potential as an orally active treatment of AD by modulating both Th1 and Th2 responses.
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Affiliation(s)
- Nam Yong Ki
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Eun-Ji Park
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - In sung Sung
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Seul A Ju
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Kyoung Un Kim
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Mi Rae Kim
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Do Yeon Song
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Min-Ju Lee
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
| | - Hak-Soo Kim
- Chemon Non-clinical Research Institute, Yangji, 17162, Korea
| | - Boo-Hyon Kang
- Chemon Non-clinical Research Institute, Yangji, 17162, Korea
| | - Hun-Jong Chung
- Industrial Medicine Department, Chungju Hospital, Konkuk Medical School, Konkuk University, Chungju, 27478, Korea
| | - Eun-Ju Choi
- Division of Sport Science, College of Science and Technology, Konkuk University, Chungju, 27478, Korea
| | - Ki-Hun Yoon
- College of Pharmacy, Chung-Ang University, Seoul, 06974, Korea
| | - Min Won Lee
- College of Pharmacy, Chung-Ang University, Seoul, 06974, Korea
| | | | | | | | - Hwa-Sup Shin
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University, Chungju, 27478, Korea
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Kim JH, Park TS, Yang SH, Suh JW, Shim SM. Microbial bioconversion and processing methods enhance the phenolic acid and flavonoids and the radical scavenging capacity of Smilax china L. leaf. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:878-885. [PMID: 25754764 DOI: 10.1002/jsfa.7160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/08/2015] [Accepted: 03/01/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND It has been reported that Smilax china L. leaf (SCL) provided various biological functions owing to polyphenols. The objective of the current study was to assess the enhancing effect of processing methods and microbial conversions on phenolic acid and flavonoid content and radical scavenging capacity of SCL for potential applications of diverse food products. RESULTS Targeted phenolic acid (chlorogenic acid) and flavonoids (piceid and quercetin) were identified in fresh SCL using liquid chromatography-mass spectrometry. The total amount of identified phenolic acid and flavonoids was highest in steamed SCL (12.70 ± 0.12 mg g(-1) on a dry matter basis, dmb). A substantial amount of chlorogenic acid (5.81 ± 0.16 mg g(-1) dmb), piceid (3.96 ± 0.04 mg g(-1) dmb) and quercetin (6.06 ± 0.12 mg g(-1) dmb) were quantified in SCL fermented by Bacillus species, roasted and steamed, respectively (P < 0.05). The oxygen radical absorbance capacity (ORAC) value was greater in microbial fermented SCL than in others, with the exception of Saccharomyces cerevisiae and Aspergillus oryzae. However, vitamin C equivalent antioxidant capacity (VCEAC) was highest in SCL fermented by Aspergillus oryzae. CONCLUSION Results from our study suggest that the microbial fermentation processing method could improve accessibility to extraction of phenolic acids and flavonoid content and radical scavenging capacity.
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Affiliation(s)
- Ju-Hyeong Kim
- Department of Food Science and Technology, Sejong University, Seoul 143-747, Republic of Korea
| | - Tae-Sik Park
- Department of Life Science, Gachon University, Sungnam-si, Gyeonggi-do 461-701, Republic of Korea
| | - Seung-Hwan Yang
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Gyeonggi-Do 449-728, Republic of Korea
| | - Joo-Won Suh
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Gyeonggi-Do 449-728, Republic of Korea
- Division of Bioscience and Bioinformatics, College of Natural Science, Myongji University, Gyeonggi-Do 449-728, Republic of Korea
| | - Soon-Mi Shim
- Department of Food Science and Technology, Sejong University, Seoul 143-747, Republic of Korea
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