کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2014773 1541917 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative study of mucilage and pulp polysaccharides from tamarillo fruit (Solanum betaceum Cav.)
ترجمه فارسی عنوان
بررسی مقایسه ای پلی ساکارید های موئلیگ و پالپ از میوه تاماریو (Solanum betaceum Cav.)
کلمات کلیدی
Arabinan؛ Arabinogalactan؛ موقت پکتین؛ Solanum betaceum؛ تاماریلو؛ کایلن
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
چکیده انگلیسی


• Polysaccharides from mucilage of tamarillo fruits were obtained.
• Homogalacturonan, arabinogalactan, arabinan, and linear (1 → 4)-β-D-xylan were found
• Comparison with those polysaccharides from pulp was performed.
• Structural differences between mucilage and pulp polysaccharides were observed.

A comparative study of mucilage (locular tissue) and pulp polysaccharides from ripe tamarillo fruits (Solanum betaceum Cav.) was carried out. After aqueous and alkaline extractions and various purification steps (freeze–thaw and α-amylase - EC 3.2.1.1 treatments, Fehling precipitation and ultrafiltration through 50 kDa cut-off membrane), the obtained fractions from mucilage were analyzed by sugar composition, HPSEC, and NMR spectroscopy analyses. The results showed that the mucilage of tamarillo contains a highly methoxylated homogalacturonans mixed with type I arabinogalactans, a linear (1 → 5)-linked α-L-arabinan, and a linear (1 → 4)-β-D-xylan. A comparison with polysaccharides extracted from the pulp revealed that differences were observed in the yield and in the ratio of extracted polysaccharides. Moreover, structural differences between pulp and mucilage polysaccharides were also observed, such as in the length of side chains of the pectins, and in the degree of branching of the xylans.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 104, July 2016, Pages 278–283
نویسندگان
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