<span style="font-size:13.0pt;mso-bidi-font-size: 14.0pt;font-family:"Times New Roman","serif";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:HI; mso-bidi-font-weight:bold" lang="EN-US">Total flavonoid content and essential oil composition of <i>Chaenomeles japonica</i> (Thunb.) Lindl. ex Spach from North of Iran

Abstract

<span style="font-size:9.0pt;font-family: " times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:hi"="" lang="EN-US">Essential oil of the fruits of <i>Chaenomeles japonica </i>(Thunb.) Lindl. ex Spach was obtained by hydro distillation and analyzed by GC and GC-MS. Thirty five components representing 94.6 % of total were identified. The oil was rich in monoterpenes (88.3 %) and the main components were: carvacrol<span style="font-size:9.0pt;font-family:" times="" new="" roman","serif";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:fa"="" lang="EN-US"> <span style="font-size:9.0pt; font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:hi"="" lang="EN-US">(62.6 %), limonene (8.0 %), p-cymene (4.9 %) and γ-terpinene (3.2 %). Quantitative assessment of flavonoids was conducted by aluminum chloride colorimetric method in terms of quercetin equivalent in various extracts of <i>C. japonica </i>fruits. After one week duration of extraction, the highest amount of flavonoid content (<span style="font-size:9.0pt;font-family:" times="" new="" roman","serif";="" mso-fareast-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:fa"="" lang="EN-US">1.316<span style="font-size:9.0pt; font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:hi"="" lang="EN-US"> <span style="font-size:9.0pt;font-family:" times="" new="" roman","serif";="" mso-fareast-font-family:"times="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:fa"="" lang="EN-US">mg/g) was observed in <span style="font-size:9.0pt;font-family:" times="" new="" roman","serif";mso-fareast-font-family:="" "times="" roman";mso-ansi-language:en-us;mso-fareast-language:en-us;="" mso-bidi-language:hi"="" lang="EN-US">chloroform extract.</span></span></span></span></span></span></span>