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مقایسه روشهای مختلف تانن زدایی برگ گردوی ایرانی Junglans regia L.)) و اثر آنها بر ترکیب شیمیایی و فراسنجههای تخمیری در شرایط برون تنی | ||
| زیست شناسی کاربردی | ||
| مقاله 5، دوره 32، شماره 3 - شماره پیاپی 61، آذر 1398، صفحه 69-82 اصل مقاله (730.67 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22051/jab.2020.4407 | ||
| نویسندگان | ||
| بهزاد امیر1؛ سعید سبحانی راد* 2 | ||
| 1دانش آموخته گروه علوم دامی، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران | ||
| 2عضو هیات علمی/ گروه علوم دامی، واحد مشهد، دانشگاه آزاد اسلامی، مشهد، ایران | ||
| چکیده | ||
| هدف از انجام این آزمایش، تعیین ترکیبات شیمیایی و بررسی روشهای تاننزدایی در برگ گردوی ایرانی (Junglans regia L.) و تخمین فراسنجههای تخمیری آنها بهروش تولید گاز بود. روشهای مذکور شامل روشهای خیساندن، جوشاندن، پرکولاسیون و سوکسله بودند. نتایج نشانداد که کاهش مقدار تانن در تمامی روشهای فرآوری نسبت به تیمار شاهد معنیدار بود. همچنین روش خیساندن سبب افزایش معنیدار پروتئین خام، انرژی خام، الیاف نامحلول در شوینده خنثی و الیاف نامحلول در شوینده اسیدی نسبت به سایر تیمارها شد. فرآوری بهروش خیساندن نسبت به سایر تیمارها سبب افزایش معنیدار تولید گاز تجمعی و تولید گاز از بخش نامحلول (b) و افزایش غیرمعنیدار نرخ تولید گاز (c)، انرژی قابل متابولیسم و هضمپذیری ماده آلی شد (05/0<p). لذا با توجه به نتایج بهدست آمده، روش خیساندن و استفاده از آبمقطر نسبت به اتانول، روش مناسبی جهت استخراج تانن از برگ گردو و مصرف آن در خوراک نشخوارکنندگان میباشد. | ||
| کلیدواژه‌ها | ||
| برگ گردو؛ روش های تانن زدایی؛ تولید گاز؛ خصوصیات تخمیری | ||
| عنوان مقاله [English] | ||
| Comparison of different methods of tannin extraction from the leaves of Iranian walnut (Juglans regia L.) and their effects on chemical composition and fermentative parameters in vitro | ||
| نویسندگان [English] | ||
| behzad amir1؛ saeed sobhani rad2 | ||
| چکیده [English] | ||
| The aim of this study was to determine the chemical composition and evaluation of extraction methods of tannin from leaves of Iranian walnut (Juglans regia L.) and estimation of fermentative parameters by gas production technique. Mentioned methods include maceration method, boiling method, percolation method, and Soxhlet method. The results showed that the number of tannins in all the processing methods was reduced significantly compared to the control treatment (p < 0.05). Crude protein, crude energy, natural detergent fiber and acid detergent fiber were also increased to compare to other treatments, significantly (p < 0.05). Soaking Process compared to other treatments increased significantly cumulative gas production, the fermentable fraction (b) of gas production and also increased insignificantly the parameters of rate (c) of gas production, metabolizable energy, and digestibility of organic matter. Therefore, by comparing the chemical composition and fermentative characteristics of the processed products, it can be concluded maceration method and use distilled water compared to ethanol, is a suitable method for the extraction of tannin and its use in ruminants' feedstuff. | ||
| کلیدواژه‌ها [English] | ||
| walnut, tannin removal methods, gas production, fermentation characteristics | ||
| مراجع | ||
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