کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1384946 982425 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization and antioxidant activities of polysaccharides from leaves, flowers and seeds of green tea
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Characterization and antioxidant activities of polysaccharides from leaves, flowers and seeds of green tea
چکیده انگلیسی

The chemical characterization and antioxidant activities of tea leaves polysaccharides (TLPS), tea seed polysaccharide (TSPS), tea flower polysaccharide (TFPS) were investigated after isolated from the leaves, flowers and seeds of camellia sinensis. Results indicated that TLPS, TFPS and TSPS were all composed of Rha, Ara, Gal, Glu, Xyl, GalA and GluA, besides, TLPS was also contained Man and Rib, and TFPS was also contained Man. The molecular weight distribution of TLPS, TFPS and TSPS ranged from 3.67 × 103 to 7.58 × 105 Da, 2.56 × 103 to 1.46 × 106 Da and 3.66 × 103 to 9.61 × 105 Da, respectively. Antioxidant activity tests revealed that TLPS, TFPS and TSPS exhibited strong antioxidation in a concentration-dependent manner. Furthermore, TLPS and TFPS had higher antioxidant activity than TSPS. The nature of monosaccharide and the higher molecular weight in TLPS and TFPS molecules probably contribute to the activities.


► The chemical characterization and antioxidant activities of tea leaves polysaccharides (TLPS), tea seed polysaccharide(TSPS), tea flower polysaccharide(TFPS) were investigated after isolated from the leaves, flowers and seeds of camellia sinensis.
► TLPS, TFPS and TSPS were all composed of Rha, Ara, Gal, Glu, Xyl, GalA and GluA, besides, TLPS was also contained Man and Rib, and TFPS was also contained Man.
► The molecular weight distribution of TLPS, TFPS and TSPS ranged from 3.01 × 105 to 1.88 × 106 Da, 2.56 × 103 to 1.46 × 106 Da and 3.66 × 103 to 9.61 × 105 Da, respectively.
► TLPS, TFPS and TSPS exhibited strong antioxidation.
► TLPS and TFPS had higher antioxidant activity than TSPS.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 88, Issue 1, 17 March 2012, Pages 146–153
نویسندگان
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