کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4514238 1322206 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isolation, identification and dyeing studies of betanin on modified acrylic fabrics
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Isolation, identification and dyeing studies of betanin on modified acrylic fabrics
چکیده انگلیسی

Mature red fruits of Opuntia ficus-indica contain two soluble pigment, betanin and indicaxanthin. The optimal conditions for dye extraction were to mix 50 g of juice from cactus pears with 100 mL of acidified water as solvent for dye extraction. Two main dyes were purified from the pigment extract by chromatography and identified by UV–vis, HPLC and LC–MS techniques as indicaxanthin (15 mg per 100 g) and betanin (280 mg per 100 g). The effect of dye bath pH, salt concentration, dyeing time and temperature was studied. The optimal conditions for dyeing modified acrylic fabrics with betanin dye were carried out at 50 °C for 45 min at pH 5. Un-mordanted samples have good properties of water and washing fastness. Mordant CoSO4 was found to give good light fastness (rating 5).

Figure optionsDownload as PowerPoint slideHighlights
► We realise extraction and isolation of betanin from reddish purple fruits of Opuntia ficus-indica.
► We investigate the deability of modified acrylic fabrics with betanin dye.
► The dyeing conditions and the overall fastness properties were investigated.
► Cobalt was the best mordant for the improvement of colour strength and light fastness.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 37, Issue 1, May 2012, Pages 342–346
نویسندگان
, , , ,