نتایج جستجو برای: stevia
تعداد نتایج: 1246 فیلتر نتایج به سال:
Three novel diterpene glycosides were isolated for the first time from the commercial extract of the leaves of Stevia rebaudiana, along with several known steviol glycosides, namely stevioside, rebaudiosides A-F, rubusoside and dulcoside A. The new compounds were identified as 13-[(2-O-β-D-glucopyranosyl-3-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-15-en-19-oic acid, 13-[(2-O-β-D-glu...
Background & Aim: Changes in lifestyle, decrease in physical exercise along with incidence of obesity, hypertension and cardiovascular diseases indicate a need for low calorie formulations. The sweetness of Stevia, a natural sweetener, is estimated to be 300 times as much as that of sugar. Extraction of stevia leaves is considered a promoter of calorie balance and a beneficial part of a healt...
Exactly estimating of water requirement is essential for water balance studies, design and management of irrigation systems and water resources management. Because of limited soil and water resources in Iran, for optimal use of water resources in the agricultural sector, it is necessary to determine the amount of water requirement by different plants in different climatological conditions. In o...
Degradation of rebaudioside M, a minor sweet component of Stevia rebaudiana Bertoni, under conditions that simulated extreme pH and temperature conditions has been studied. Thus, rebaudioside M was treated with 0.1 M phosphoric acid solution (pH 2.0) and 80 °C temperature for 24 h. Experimental results indicated that rebaudioside M under low pH and higher temperature yielded three minor degrada...
مقدمه: با توجه به اهمیت گیاه دارویی شیرین برگ که گلیکوزیدهای آن در سال های اخیر به عنوان شیرین کننده طبیعی جایگزین ساکارز معرفی شده است، بررسی تأثیر کودهای زیستی بر رشد آن ضروری به نظر می رسد. هدف: بررسی تأثیر ورمی کمپوست و قارچ های میکوریزا بر صفات رشدی و میزان ماده شیرین کننده استویوزید. روش بررسی: آزمایش ها به صورت فاکتوریل در قالب طرح بلوک های کامل تصادفی با 12 تیمار در 3 تکرار در گلخانه تح...
Low caloric sweeteners have been investigated to substitute sugar as an advantage for both nutritional and medicinal purpose. These sugar substitutes are interesting particularly for concepts marketed under a natural claim. Among these, Stevia rebaudiana is a small shrub; its leaves are used as a sweetener. Serial dilution of the hot water Crude extract of S. rebaudiana leaves and aqueous solut...
Background and objectives: Stevia rebaudiana Bertoni is a herbaceous and a small shrub of the Compositae family. It is native to certain regions of South America. Since 1970s, Stevia extracts have been extensively used in many countries as a sugar substitute. Stevia is cultivated in many countries: Paraguay, USA, Mexico, Central America, Japan, China,...
Background : Streptococcus mutans is a major cause of dental caries and tooth damage. The purpose of this study was to evaluate the effect of the Stevioside and Stevia rebaudiana leaf extracts on the growth of Streptococcus mutans. Materials and Methods: In this study, the aqueous and acetone extracts of Stevia rebaudiana were extracted by the maceration method, and methanol and ethanol extract...
Abstract The current study was conducted with aim to find an efficient simple protocol for propagation of stevia plant ( Stevia rebaudiana ) In Vitro . Shoot tips, leaves and stem nodes explants were sterilized different concentrations NaOCl (0.0, 2.0, 4.0 6% v/v) then cultured on MS medium supplemented 30 g.l -1 sucrose. Results revealed that, no contamination recorded when using % 6.0 (100% 8...
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