Quantitative and Qualitative Analysis of Essential Oil of Arabian Jasmine (Jasminum sambac) Flowers Harvested from Pothohar Region of Pakistan

محورهای موضوعی : مجله گیاهان زینتی

Malik Abid Mahmood ¹ , Muhammad Saeed ² , Naveed Ahmad ³

1 - Directorate of Floriculture (T&R) Punjab, 21-Davis Road, Lahore, Pakistan
2 - Directorate of Floriculture (T&R) Punjab, 21-Davis Road, Lahore, Pakistan
3 - Agriculture Department Govt of Punjab, Pakistan

تاریخ دریافت : 1395/07/24 تاریخ پذیرش : 1395/10/29 تاریخ انتشار : 1395/12/11

کلید واژه: GC-MS analysis, Jasmine, n-Hexane, oil extraction, Pothohar,

چکیده مقاله :

The essential oil extracted by n-Hexane solvent extraction and hydro-distillation of Arabian jasmine flowers collected from Pothohar region was analyzed by GC/MS. Concrete oil recovery on fresh petal weight basis was 1.78 g (0.17%) and absolute oil recovery from this concrete was 0.09%. Essential oil recovery in hydro-distillation was 0.08 g (0.008%). The colour of absolute oil was very light brown. The readings for specific gravity, congealing point of concrete and refractive index of essential oil were 0.89, 57°C and 1.37, respectively. Overall 35 compounds were identified. Main components (>5%) were benzyl benzoate (15.63%), jasmine (9.90%), linalool (8.58%), isophytol (7.56%), geranyl linalool (6.07%), phytol (5.75%) and palmitic acid (5.01%). Other constituents varied from less than 1% to 5%.

چکیده انگلیسی:

اسانس استخراج شده به­وسیله n-Hexane  و روش تقطیر با آب از گل­های یاسمن عربی که از باغات منطقه پوتوهار جمع­آوری شده بود، به­وسیله­ی روش گاز کروماتوگرافی توده­ای (GC-MS) آنالیز شد. اسانس کانکریت حاصل از گلبرگ­های تازه 78/1 گرم (17/0 درصد) و اسانس مطلق حاصل از کانکریت 09/0 درصد بود. اسانس به­دست آمده به روش تقطیر با آب 08/0 گرم (008/0 درصد) بود. رنگ اسانس مطلق، قهوه­ای خیلی روشن بود. جرم ویژه، نقطه انجماد، کانکریت و شاخص انعکاس اسانس به­ترتیب 89/0، 57 درجه سانتی­گراد و 37/1 بود. تمام 35 ترکیب موجود در اسانس شناسایی شدند. اجزای اصلی (بیش از 5 درصد) عبارتند از: بنزیل بنزوات (63/15 درصد)، ژاسمین (9/9 درصد)، لینالول (58/8 درصد)، ایزوفایتول (56/7 درصد)، ژرانیل لینالول (07/6 درصد)، فایتول (75/5 درصد) و اسید پالمتیک (01/5 درصد). اجزای دیگر اسانس از کمتر از یک درصد تا 5 درصد متغیر بودند.

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