ارزیابی خصوصیات فیزیکوشیمیایی و ترکیبات زیست فعال میوه خرما (Phoenix dactylifera) دو رقم «پیارم» و «زاهدی»

مجله پژوهشهای علوم و صنایع غذایی ایران

مقاله 9، دوره 14، شماره 1 - شماره پیاپی 49، فروردین و اردیبهشت 1397، صفحه 177-186   

نوع مقاله: مقاله پژوهشی

شناسه دیجیتال (DOI): 10.22067/ifstrj.v14i1.60214

نویسندگان

سعیده زربخش^* ؛ سمیه رستگار

گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه هرمزگان، بندرعباس، ایران.

چکیده

خرما به‌عنوان یک محصول عمده کشاورزی ایران دارای ارزش غذایی بالایی می‌باشد. در این پژوهش، برخی خصوصیات فیزیکی و ترکیبات شیمیایی دو رقم خرمای پیارم و زاهدی پرورش یافته در دو منطقه حاجی‌آباد و جهرم مورد بررسی قرار گرفت. بر اساس نتایج به‎دست آمده بیشترین طول میوه (mm 6/43)، وزن گوشت (g 3/9) و خاصیت آنتی‌اکسیدانی (mgFW 57) مربوط به پیارم در منطقه حاجی‌آباد و بیشترین میزان فنل (mg/gFW 7/20)، مواد جامد محلول (%3/77) و اسید قابل تیتر(%023/0) به رقم زاهدی حاجی‌آباد تعلق داشت. گرچه ارقام خرمای جهرم در شاخص رنگ و میزان تانن نتایج بهتری از ارقام خرمای حاجی‌آباد نشان دادند. در مقایسه بین دو رقم، رقم پیارم در صفات وزن میوه(g 3/28)، درصد‌رطوبت، میزان پروتئین(% 7) و فلاونوئید (mg CEQ/gFW 2/22) نسبت به رقم زاهدی برتری داشت. در حالیکه، رقم زاهدی دارای کربوهیدرات (% 85) بالاتری بود. بنابراین در تعیین ارزش غذایی و ترکیبات مختلف میوه خرما علاوه بر رقم، مکان و شرایط آب و هوایی منطقه نقش موثری خواهند داشت.

کلیدواژه‌ها

خرما؛ پیارم؛ زاهدی؛ آنتی‌اکسیدان؛ کربوهیدرات

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