Exploring the Pharmacognostic Features, Anti-oxidant and Lipid Lowering Potential of Fagopyrum esculentum Moench. Seed

Author(s): Neeraj Panihar*, Neeru Vasudeva, Sunil Sharma, Babu Lal Jangir.

Journal Name: Current Traditional Medicine

Volume 6 , Issue 2 , 2020

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Graphical Abstract:


Background: Fagopyrum esculentum Moench. is a herb consumed as food and has medicinal value. It is a rich source of bioactive nutrients which cure and prevent many ailments. Traditionally, it is used to treat hypertension, diabetes, constipation, cancer etc.

Methods and Objective: Present work illustrates morphological, microscopic and physicochemical parameters of Fagopyrum esculentum seeds as per WHO guidelines, in vitro antioxidant activity; assessed by DPPH scavenging method, hydrogen peroxide scavenging assay and β-carotene linoleic acid bleaching method and study of lipid lowering potential of the ethyl acetate and ethanol extract of seeds on normal diet fed Wistar rats.

Results: Morphological studies delineated the triangular shape, dark brown colour, 8 mm length and 6 mm width of the seed. The microscopic examination of the transverse section of seed depicted features like testa or pericarp (seed coat), the endosperm, embryo and sclerenchyma cells. Study of physiochemical parameters exhibited 0.3±0.02% of foreign matter and 1.44±0.51% crude fibre content. Total ash, acid insoluble ash and water soluble ash value were 6.7±1.7%, 1.9±0.23% and 3.9± 0.31% respectively. Alcohol soluble and water soluble extractive value came out to be 65.02± 3.21 mg/g and 12.7±1.24 mg/g respectively. Foaming index was less than 100, swelling index was found to be 0.5±0.01 ml/g. Loss on drying was 4.02±1.27%. Phytochemical screening of ethyl acetate and ethanol extract revealed the presence of alkaloids, carbohydrates, phenolic compounds, phytosterols and flavonoids. Trace amount of heavy metals (arsenic, cadmium, lead, mercury) were determined by atomic absorption spectrophotometer. Pesticide residue analysis confirmed the presence of nontoxic pesticides like dimethipin, hymexazol, phenothrin-2, methoprene, triadimenol, prohydrojasmon- 1, jasmolin ii, triademinol, jasmolin i, prohydrojasmone i, cyromazine in both the extracts by gc-ms spectrometer. The ethyl acetate and ethanol extract has shown significant in-vitro antioxidant activities demonstrated by the DPPH method (IC50 = 94.37±2.51 and 216.04±4.39 μg/ml respectively), hydrogen peroxide scavenging assay (IC50 = 83.72±3.72 and 193.47±5.05 µg/ml respectively) and β-carotene bleaching method (IC50 = 100.67±4.01 and 205.39±2.89 µg/ml respectively). Lipid lowering study performed on Wistar rats demonstrated a significant (p<0.001) decrease in serum Total Cholesterol (TC), Triglyceride (TG) and increase in High Density Lipoprotein (HDL) level as compared to normal group. Both the extracts have shown a non significant difference in the level of TG as compared to standard drug atorvastatin, depicting that the efficacy of extracts is at par with that of standard drug atorvastatin.

Conclusion: Pharmacognostical study of the plant can be a very good tool for identification as well as authentication of a herb. Moreover, these parameters may be helpful in the development of monograph of the plant. Pharmacological activity confirmed Fagopyrum esculentum Moench. seed to be a good antioxidant and have lipid lowering potential.

Keywords: Antioxidant, Fagopyrum esculentum Moench., heavy metal content, lipid lowering activity microscopy, pharmacognostical studies, pesticide residue.

Christa K, Soral-Śmietana M. Buckwheat grains and buckwheat products-nutritional and prophylactic value of their components - A review. Czech J Food Sci 2008; 26(3): 153-62.
Woo SH, Kamal MAH, Tatsuro S, et al. Buckwheat (Fagopyrum esculentum Moench.): Concepts, prospects and potential. Eur J Plant Sci Biotechnol 2010; 4: 1-6.
Giménez-Bastida JA, Zieliński H. Buckwheat as a functional food and its effects on health. J Agric Food Chem 2015; 63(36): 7896-913.
[http://dx.doi.org/10.1021/acs.jafc.5b02498] [PMID: 26270637]
Gonçalves FA, Debiage RR, da Silva RM, Porto PP, Yoshihara E, de Mello Peixoto EC. Fagopyrum esculentum Moench: A crop with many purposes in agriculture and human nutrition. Afr J Agric Res 2016; 11(12): 983-9.
Dipak HO, Ranbir SR. Collection, cultivation and characterization of buckwheat in Northeastern Region of India. Fagopyrum 2002; 19: 11-5.
Jing R, Li HQ, Hu CL, Jiang YP, Qin LP, Zheng CJ. Phytochemical and pharmacological profiles of three fagopyrum buckwheats. Int J Mol Sci 2016; 17(4): 589.
[http://dx.doi.org/10.3390/ijms17040589] [PMID: 27104519]
Prakash S, Sharma S, Yadav K, Yadav R. Biochemical analysis of amylase during germination of buckwheat (Fagopyrum esculentum) seeds: A pharmaceutical plant. Int J Soc Res Methodol 2015; 2(1): 31-46.
Bystricka J, Musilova J, Tomas J, Vollmannova A, Lachman J, Kavalcova P. Changes of polyphenolic substances in the anatomical parts of buckwheat (Moench.) during its growth phases. Foods 2014; 3(4): 558-68.
[http://dx.doi.org/10.3390/foods3040558] [PMID: 28234337]
Rana JC, Chauhan RC, Sharma TR, Gupta N. Analyzing problems and prospects of buckwheat cultivation in India. Eur J Plant Sci Biotechnol 2012; 6(2): 50-6.
Čabarkapa IS, Sedej IJ, Sakač MB, Šarić LČ, Plavšić DV. Antimicrobial activity of buckwheat (fagopyrum esculentum moench) hulls extract. Food Proc Quality and Safety 2008; 35(4): 159-63.
Al-Snafi AE. A review on Fagopyrum esculentum: A potential medicinal plant. IOSR J Pharm 2017; 7(3): 21-32.
Qin P, Wang Q, Shan F, Hou Z, Ren G. Nutritional composition and flavonoids content of flour from different buckwheat cultivars. Int J Food Sci Technol 2010; 45: 951-8.
Wiczkowski W, Szawara-Nowak D, Dezbski H, Mitrus J, Horbowicz M. Comparison of flavonoids profile in sprouts of common buckwheat cultivars and wild tartary buckwheat. Int J Food Sci Technol 2014; 49: 1977-84.
Fabjan N, Rode J, Kosir IJ, Wang Z, Zhang Z, Kreft I. Tartary buckwheat (Fagopyrum tataricum Gaertn.) as a source of dietary rutin and quercitrin. J Agric Food Chem 2003; 51(22): 6452-5.
[http://dx.doi.org/10.1021/jf034543e] [PMID: 14558761]
Watanabe M, Ohshita Y, Tsushida T. Antioxidant compounds from buckwheat (Fagopyrum esculentum Möench) hulls. J Agric Food Chem 1997; 45(4): 1039-44.
Prakash S, Yadav K. Pharmacobiology and medical sciences buckwheat (Fagopyrum esculentum) as a functional food : A nutraceutical pseudocereal. Int J Curr Trend Pharmacobiol Med Sci 2016; 1(3): 1-5.
Lin LY, Peng CC, Yang YL, Peng RY. Optimization of bioactive compounds in buckwheat sprouts and their effect on blood cholesterol in hamsters. J Agric Food Chem 2008; 56(4): 1216-23.
[http://dx.doi.org/10.1021/jf072886x] [PMID: 18217700]
Watanabe M, Ayugase J. Effects of buckwheat sprouts on plasma and hepatic parameters in type 2 diabetic db/db mice. J Food Sci 2010; 75(9): H294-9.
[http://dx.doi.org/10.1111/j.1750-3841.2010.01853.x] [PMID: 21535603]
He J, Klag MJ, Whelton PK, et al. Oats and buckwheat intakes and cardiovascular disease risk factors in an ethnic minority of China. Am J Clin Nutr 1995; 61(2): 366-72.
[http://dx.doi.org/10.1093/ajcn/61.2.366] [PMID: 7840076]
Zhang HW, Zhang YH, Lu MJ, Tong WJ, Cao GW. Comparison of hypertension, dyslipidaemia and hyperglycaemia between buckwheat seed-consuming and non-consuming Mongolian-Chinese populations in Inner Mongolia, China. Clin Exp Pharmacol Physiol 2007; 34(9): 838-44.
[http://dx.doi.org/10.1111/j.1440-1681.2007.04614.x] [PMID: 17645626]
Bijlani RL, Sud S, Sahi A, Gandhi BM, Tandon BN. Effect of sieved buckwheat (Fagopyrum esculentum) flour supplementation on lipid profile and glucose tolerance. Indian J Physiol Pharmacol 1985; 29(2): 69-74.
[PMID: 3005170]
Wieslander G, Fabjan N, Vogrincic M, et al. Eating buckwheat cookies is associated with the reduction in serum levels of myeloperoxidase and cholesterol: A double blind crossover study in day-care centre staffs. Tohoku J Exp Med 2011; 225(2): 123-30.
[http://dx.doi.org/10.1620/tjem.225.123] [PMID: 21931228]
Jenkins DJ, Wolever TM, Kalmusky J, et al. Low-glycemic index diet in hyperlipidemia: Use of traditional starchy foods. Am J Clin Nutr 1987; 46(1): 66-71.
[http://dx.doi.org/10.1093/ajcn/46.1.66] [PMID: 3300252]
Neeraj VN, Sharma S, Ravi DA. HPLC standardization of ethyl acetate extract of fagopyrum esculentum moench. Seeds and in-vitro enzyme inhibitory activities. Int J Pharm Sci Res 2018; 9(11): 4917-22.
Khandelwal KR. Practical Pharmacognosy India, Nirali Publication Pragati books private limited, 8th Edition 2008.
Evans WC. Trease and Evans Pharmacognosy. 6th ed. India: Elsevier 2009.
WHO Quality control methods for herbal material, Geneva: Organisation Mondiale De. Sante 2011; 9-49.
Goyal RK, Shah SA, Mehta AA. Practicals in biochemistry and clinical pathology. 1st ed. Ahmedabad: Shah Prakashan 1997.
Kokate CK, Purohit AP, Gokhale SB. Pharmacognosy. Nirali Prakashan 42th Edition . 2008.
Kar A. Pharmacognosy and Pharmacobiotechnology. New Age International 2003.
Khandelwal K. Practical Pharmacognosy. Pragati Books Pvt Ltd 2008.
Kunle OF, Egharevba HO, Ahmadu PO. Standardisation of herbal medicines -A review. Int J Biodivers Conserv 2012; 4: 101-12.
Das S, Vasudeva N, Sharma S. Chemical composition of ethanol extract of Macrotyloma uniflorum (Lam.) Verdc. using GC-MS spectroscopy. Org Med Chem Lett 2014; 4(1): 13.
[http://dx.doi.org/10.1186/s13588-014-0013-y] [PMID: 26548989]
Chandrasekar D, Madhusudhana K, Ramakrishna S, Diwan PV. Determination of DPPH free radical scavenging activity by reversed-phase HPLC: A sensitive screening method for polyherbal formulations. J Pharm Biomed Anal 2006; 40(2): 460-4.
[http://dx.doi.org/10.1016/j.jpba.2005.07.042] [PMID: 16297590]
Yen G-C, Chen H-Y. Antioxidant activity of various tea extracts in relation to their antimut agenicity. J Agric Food Chem 1995; 43: 27-32.
Sun T, Ho CT. Antioxidant activities of buckwheat extracts. Food Chem 2005; 90(4): 743-9.
Devi R, Sharma DK. Hypolipidemic effect of different extracts of Clerodendron colebrookianum Walp in normal and high-fat diet fed rats. J Ethnopharmacol 2004; 1: 90(1): 63-8.
Saad B, Azaizeh H, Abu-Hijleh G, Said O. Safety of traditional Arab herbal medicine. Evid Based Complement Alternat Med 2006; 3(4): 433-9.
[http://dx.doi.org/10.1093/ecam/nel058] [PMID: 17173106]
Alok S, Jain SK, Verma A, Kumar M. Pharmacognostic and phytochemical evaluation of Dolichos biflorus Linn. Asian Pac J Trop Dis 2014; 4(1): 97-101.
Saraf A. Phytochemical and antimicrobial studies of medicinal plant Costus speciosus (Koen.). J Chem 2010; 7: 405-13.
Korfali SI, Hawi T, Mroueh M. Evaluation of heavy metals content in dietary supplements in Lebanon. Chem Cent J 2013; 7(1): 10.
[http://dx.doi.org/10.1186/1752-153X-7-10] [PMID: 23331553]
Korfali SI, Mroueh M, Al-Zein M, Salem R. Metal concentration in commonly used medicinal herbs and infusion by Lebanese population: Health impact. J Food Res 2013; 2: 70-80.
Singh R, Gautam N, Mishra A, Gupta R. Heavy metals and living systems: An overview. Indian J Pharmacol 2011; 43(3): 246-53.
[http://dx.doi.org/10.4103/0253-7613.81505] [PMID: 21713085]
Othman A, Mukhtar NJ, Ismail NS, Chang SK. Phenolics, flavonoids content and antioxidant activities of 4 Malaysian herbal plants. Int Food Res J 2014; 21(2): 759-66.
WHO guidelines for assessing quality of herbal medicines with reference to contaminants and residue, Geneva: Organisation Mondiale De. Sante 2007; 24.
Das S. Indian medicinal plants in treatment of kidney disorders: An Investigation [dissertation]. Guru Jambheshwar University of Science and Technology 2018.
Yadav BS, Yadav R, Yadav RB, Garg M. Antioxidant activity of various extracts of selected gourd vegetables. J Food Sci Technol 2016; 53(4): 1823-33.
[http://dx.doi.org/10.1007/s13197-015-1886-0] [PMID: 27413209]
Tharasena B, Lawan S. Phenolics, flavonoids and antioxidant activity of vegetables as Thai side dish. APCBEE Procedia 2014; 8: 99-104.
Andreas MP. Diet and antioxidant status Antioxidant status, diet, nutrition and health. Boca Raton, FL: CRC Press 1999; pp. 89-10.
Mora A, Payá M, Ríos JL, Alcaraz MJ. Structure-activity relationships of polymethoxyflavones and other flavonoids as inhibitors of non-enzymic lipid peroxidation. Biochem Pharmacol 1990; 40(4): 793-7.
[http://dx.doi.org/10.1016/0006-2952(90)90317-E] [PMID: 2386548]
Cotelle N, Bernier JL, Hénichart JP, Catteau JP, Gaydou E, Wallet JC. Scavenger and antioxidant properties of ten synthetic flavones. Free Radic Biol Med 1992; 13(3): 211-9.
[http://dx.doi.org/10.1016/0891-5849(92)90017-B] [PMID: 1324203]
Frankel EN. Hydroperoxide formation Lipid Oxidation. Dundee, Scotland: The Oily Press 1998.
Kulisic T, Radonic A, Katalinic V, Milos M. Use of different methods for testing antioxidative activity of oregano essential oil. Food Chem 2004; 85(4): 633-40.
Neil HA, Mant D, Jones L, Morgan B, Mann JI. Lipid screening: Is it enough to measure total cholesterol concentration? BMJ 1990; 301(6752): 584-7.
[http://dx.doi.org/10.1136/bmj.301.6752.584] [PMID: 2082960]
Smith GD, Song F, Sheldon TA. Cholesterol lowering and mortality: The importance of considering initial level of risk. BMJ 1993; 306(6889): 1367-73.
[http://dx.doi.org/10.1136/bmj.306.6889.1367] [PMID: 8518602]
Storlien LH, Jenkins AB, Chisholm DJ, Pascoe WS, Khouri S, Kraegen EW. Influence of dietary fat composition on development of insulin resistance in rats. Relationship to muscle triglyceride and ω-3 fatty acids in muscle phospholipid. Diabetes 1991; 40(2): 280-9.
[http://dx.doi.org/10.2337/diab.40.2.280] [PMID: 1991575]
Park S, Kim DS, Kang S. Gastrodia elata Blume water extracts improve insulin resistance by decreasing body fat in diet-induced obese rats: Vanillin and 4-hydroxybenzaldehyde are the bioactive candidates. Eur J Nutr 2011; 50(2): 107-18.
[http://dx.doi.org/10.1007/s00394-010-0120-0] [PMID: 20577883]
Jacke G, Rimpler H. Distribution of iridoid glycosides in Clerodondron species. Phytochemistry 1983; 22: 1729-34.
Goswami P, Kotoky J, Chern Z, Lu Y. A sterol glycosides from leaves of Clerodendron colebrookianum. Phytochemistry 1995; 41: 279-81.
Mattson FH, Grundy SM, Crouse JR. Optimizing the effect of plant sterols on cholesterol absorption in man. Am J Clin Nutr 1982; 35(4): 697-700.
[http://dx.doi.org/10.1093/ajcn/35.4.697] [PMID: 7072622]

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Year: 2020
Page: [155 - 169]
Pages: 15
DOI: 10.2174/2215083805666190807105935
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