Abstract
This study aims to evaluate the changes of flavonoid contents and antioxidants activity of Jeju native citrus fruits juice according to the harvest date. Flavonoids such as quercatagetin, narirutin, hesperidin and neohesperidin were contained most plentifully in the juice of Jigak (Citrus aur- antium) by 573.73 mg/100 mL, Sadoogam (C. pseudogulgul) by 393.99 mg/100 mL, Soyooja by 29.63 mg/100 mL and Jigak (C. aurantium) by 201.23 mg/100 mL in the late August, respectively. The highest contents of nob-iletin, sinensetin and tangeretin among polymethoxyflavones were found in the juice of Hongkyool (C. tachibana) by 7.39 mg/100 mL, 2.24 mg/100 mL, 0.63 mg/100 mL in the late August, respectively. 3,5,6,7,8,3',4'-Heptamet-hoxyflavone recorded the highest amount in Punkyool (C. tangerina) by 0.27 mg/100 mL in the late August, but the other polymethoxyflavones including 3',4',7,8-tetramethoxyflavone, 3',4'-dimethoxyflavone, 4'-methoxyflavone, 5,6,7,3',4',5'-hexamethoxyflavone, scutellarein tetramethylether were observed only trace amount in all the citrus fruits. Flavonoid contents in the citrus fruit juices were the highest during early maturation and decreased rapidly while ripening. Total polyphenol contents were the highest in the late August and decreased with ripening. However from the late December, the contents were increased again. Antioxidant activities of the fruits were evaluated as electron donating ability and were the lowest in the late September and increased with the fruit ripening. These results suggest that quercetagetin among all the flavonoids was most plentiful in Jigak and Dangyooja (C. grandis), so that the fruits could be used for industrial material of flavonoids and antioxidant agents.
Figures and Tables
Table 3
Each mean was calculated from values of three experiments
1)QCT, quercetagetin; 3)NAT, narirutin; 4)HES, hesperidin; 6))NEH, neohesperidin; 6)SIN, sinensetin; 7)TEM, 3',4',7,8-tetramethoxyflavone; 8)DIM, 3',4'-dimethoxyflavone; 9)HEX, 5,6,7,3',4',5'-hexamethoxyflavone; 10)NOB, nobiletin; 11)SCU, scutellarein tetramethylether; 12)HMT, 3,5,6,7,8,3',4'-heptamethoxyflavone; 13)MET, 4'-methoxyflavone; 14)TAN, tangeretin
2)RSD: relative standard deviation(%).15)ND: Not detected
References
1. Jeju Special self-Governing Province. Annual report of statistics 2006. 2007.
2. Rhyu MR, Kim EY, Bae IY, Park YK. Contents of naringin, hesperidin and neohesperidin in premature Korean citrus fruits. Korean J Food Sci Technol. 2002. 34(1):132–135.
3. Eun JB, Jung YM, Woo GJ. Identification and determination of dietary fibers and flavonoids in pulp and peel of Korean tangerine (Citrus aurantium var.). Korean J Food Sci Technol. 1996. 28(2):371–377.
4. Song EY, Choi YH, Kang KH, Koh JS. Free sugar, organic acid, hesperidin, naringin and inorganic elements changes of Cheju citrus fruits according to harvest date. Korean J Food Sci Technol. 1998. 30(2):306–312.
5. Lee CH, Kang YJ. HPLC analysis of some flavonoids in citrus fruits. Korean J Postharvest Sci Technol. 1997. 4(2):181–187.
6. Veldhuis MK, Swift LJ, Scott WC. Fully-methoxylated flavones in florida orange juices. J Agric Food Chem. 1970. 18(4):590–592.
7. Ting SV, Rouseff RL, Dougherty MH, Attaway JA. Determination of some methoxylated flavones in citrus juices by high performance liquid chromatography [HPLC]. J Food Sci. 1979. 44(1):69–71.
8. Del Rio JA, Arcas MC, Benavente O, Sabater F, Ortuno A. Changes of polymethoxylated flavone levels during development of Citrus aurantium (cv. Sevillano) fruits. Planta Med. 1998. 64:575–576.
9. Ortuño AM, Arcas MC, Benavente-Garcia O, Del Río JA. Evolution of polymethoxyflavones during development of tangelo Nova fruits. Food Chem. 1999. 66(2):217–220.
10. Kawaii S, Tomono Y, Katase E, Ogawa K, Yano M. Quantitation of flavonoid constituents in Citrus fruits. J Agric Food Chem. 1999. 47(9):3565–3571.
11. Kawaii S, Tomono Y, Katase E, Ogawa K, Nonomura-Nakano M, Nesumi H, Yoshida T, Sugiura M, Yano M. Quantitative study of fruit flavonoids in Citrus hybrids of King (C. nobilis) and Mukaku Kishu (C. kinokuni). J Agric Food Chem. 2001. 49(8):3982–3986.
12. Kim YC, Koh KS, Koh JS. Changes of flavonoids in the peel of Jeju native citrus fruits during maturation. Food Sci Biotechnol. 2001. 10(5):483–487.
13. Baik SO, Bock JY, Chun HJ, Jeong SI, Han WS, Kim IK. Quantitative distribution and analysis of methoxylated flavonoids in citruses and Korean chung-pi. Anal Sci Technol. 2001. 14(4):331–339.
14. Nogata Y, Sakamoto K, Shiratsuchi H, Ishii T, Yano M, Ohta H. Flavonoid composition of fruit tissues of citrus species. Biosci Biotechnol Biochem. 2006. 70(1):178–192.
15. Jeong WS, Park SW, Chung SK. The antioxidative activity of Korean Citrus unshiu peels. Foods Biotechnol. 1997. 6(4):292–296.
16. Kim HJ, Bae KH, Eun JB, Kim MK. Effects of hesperidin extracted from tangerine peel on Cd and lipid metabolism, and antioxidative capacity in rats. Korean J Nutr. 1999. 32(2):137–149.
17. Anagnostopoulou MA, Kefalas P, Papageorgiou VP, Assimopoulou AN, Boskou D. Radical scavenging activity of various extracts and fractions of sweet orange peel (Citrus sinensis). Food Chem. 2006. 94(1):19–25.
18. Mokbel MS, Hashinaga F. Evaluation of the antioxidant activity of extracts from buntan (Citrus grandis Osbeck) fruit tissues. Food Chem. 2006. 94(4):529–534.
19. Kurowska EM, Borradaile NM, Spence JD, Carroll KK. Hypocholesterolemic effects of dietary citrus juice in rabbits. Nutr Res. 2000. 20(1):121–129.
20. Kim BK, Cha JY, Cho YS. Effects of citrus flavonoid, hesperidin and naringin on lipid metabolism in HepG2 cells. Korean J Life Sci. 1999. 9(4):382–388.
21. Lio M, Uyeda M, Iwanami T, Nakagawa Y. Flavonoid as a possible preventive of dental carries. Agric Biol Chem. 1984. 48(8):2143–2145.
22. Han SS, You IJ. Studies on antimicrobial activities and safety of natural naringin in Korea. Kor J Mycol. 1988. 16(1):1–8.
23. Son HS, Kim HS, Kwon TB, Ju JS. Isolation, purification and hypotensive effect of bioflavonoids in Citrus sinensis. J Korean Soc Food Sci Nutr. 1992. 21(2):136–142.
24. Hertog MGL, Hollman PCH, Katan MB. Content of potentially anticarcinogenic flavonoids of 28 vegetables and 9 fruits commonly consumed in the Netherlands. J Agric Food Chem. 1992. 40(12):2379–2383.
25. Middleton E Jr, Kandaswami C. Potential health-promoting properties of citrus flavonoids. Food Technology. 1994. 48(11):115–119.
26. El-Shafae AM. Bioactive polymethoxyflavones and flavanone glycosides from the peels of Citrus deliciosa. Honghua yao xue za zhi. 2002. 54:199–206.
27. Hirano T, Abe K, Gotoh M, Oka K. Citrus flavone tangeretin inhibits leukaemic HL-60 cell growth partially through induction of apoptosis with less cytotoxicity on normal lymphocytes. Br J Cancer. 1995. 72:1380–1388.
28. AOAC. Official Method of Analysis. Method 914-915 Association of Official Analytical Chemists. 1985. 15th ed. Washington, DC, USA:
29. Kang YH, Park YK, Lee GD. The nitrite scavenging and electron donating ability of phenolic compounds. J Korean Food Sci Technol. 1996. 28(2):232–239.
30. Hertog MG, Feskens EJ, Hollman PC, Katan MB, Kromhout D. Dietary antioxidant flavonoids and risk of coronary heart disease: the Zutphen Elderly Study. Lancet. 1993. 342(8878):1007–1011.
31. Li S, Mao W, Cao X, Liang S, Ding Z, Li N. Inhibition of rat lens aldose reductase by quercetagetin and patuletin. Yan Ke Xue Bao. 1991. 7(1):29–30.
32. Parejo I, Bastida J, Viladomat F, Codina C. Acylated quercetagetin glycosides with antioxidant activity from Tagetes maxima. Phytochemistry. 2005. 66:2356–2362.
33. Mouly P, Gaydou EM, Auffray A. Simultaneous separation of flavanone glycosides and polymethoxylated flavones in citrus juices using liquid chromatography. J Chromatography A. 1998. 800(2):171–179.
34. Kang YJ, Yang MH, Ko WJ, Park SR, Lee BG. Studies on the major components and antioxidative properties of whole fruit powder and Juice prepared from premature mandarin orange. Korean J Food Sci Technol. 2005. 37(5):783–788.
35. Cha JY, Kim SY, Jeong SJ, Cho YS. Effects of hesperetin and naringenin on lipid concentration in orotic acid treated mice. Korean J Life Sci. 1999. 9(4):389–394.
36. Tanaka T, Makita H, Kawabata K, Mori H, Kakumoto M, Satoh K, Hara A, Sumida T, Tanaka T, Ogawa H. Chemoprevention of azoxymethane-induced rat colon carcinogenesis by the naturally ccurring flavonoids, diosmin and hesperidin. Carcinogenesis. 1997. 18(5):957–965.
37. Ishiwa J, Sato T, Mimaki Y, Sashida Y, Yano M, Ito A. A Citrus flavonoid, nobiletin, suppresses production and gene expression of matrix metalloproteinase 9/gelatinase B in rabbit synovial fibroblasts. J Rheumatol. 2000. 27(1):20–25.
38. Bracke ME, Bruyneel EA, Vermeulen SJ, Vennekens K, Maeck VN, Mareel MN. Citrus flavonoid effect on tumor invasion and metastasis. Food Technol. 1994. 48:121–124.
39. An BJ, Bae MJ, Choi HJ, Zhang YB, Sung TS, Choi C. Isolation of polyphenol compounds from the leaves of Korean Persimmon (Diospyrus kaki L. Folium). J Korean Soc Agric Chem Biotechnol. 2002. 45(4):212–217.
40. Ahmad N, Gupta S, Mukhtar H. Green tea polyphenol epigallocatechin-3-gallate differentially modulates nuclear factor κB in cancer cells versus normal cells. Archives Biochem Biophy. 2000. 376(2):338–346.
41. Yoo KM, Hwang IK. In vitro effect of yuza (Citrus junos SIEB ex TANAKA) extracts on proliferation of human prostate cancer cells and antioxidant activity. Korean J Food Sci Technol. 2004. 36(2):339–344.
42. Yoo KM, Kim CE, Kim DI, Huh D, Hwang IK. Antioxidant activity and physicochemical characteristics of tangerine peel tea prepared with Citrus unshiu cultivated in Cheju. Korean J Food Cookery Sci. 2005. 21(3):354–359.
43. Oh HS, An YS, Na IS, Oh MC, Oh CK, Kim SH. Inhibition of n-nitrosodimethylamine formation of extracts from citrus seeds. Korean J Food Cookery Sci. 2003. 19(5):640–646.
44. Jung SJ, Lee JH, Song HN, Seong NS, Lee SE, Baek NI. Screening for antioxidant activity of plant medicinal extracts. J Korean Soc Appl Biol Chem. 2004. 47(1):135–140.
45. Jayaprakasha GK, Patil BS. In vitro evaluation of the antioxidant activities in fruit extracts from citron and blood orange. Food Chemistry. 2007. 101:410–418.
46. Lim HK, Yoo ES, Moon JY, Jeon YJ, Cho SK. Antioxidant activity of extracts from Dangyuja (Citrus grandis Osbeck) fruits produced in Jeju Island. Food Sci Biotechnol. 2006. 15(2):312–316.