Conventional and Microwave-Assisted Extraction of Mucilage from Opuntia ficus-indica Cladodes: Physico-Chemical and Rheological Properties
作者： Lamia Felkai-Haddache , Hocine Remini , Virginie Dulong , Kahina Mamou-Belhabib , Luc Picton
DOI: 10.1007/S11947-015-1640-7
关键词:
摘要: Cactus pear cladodes processing has potential value for mainstream industries and is equally important marginal rural communities in arid regions. This work focused on physico-chemical rheological properties of Opuntia ficus-indica (OFI) peeled extracted by conventional method “CE” using microwave-assisted extraction “MAE.” MAE gave the highest yield (8.13 %, w/w) within lowest time (500 W/7 min) provided more protein (×1.03) carbohydrates (×1.51) than CE. The monosaccharides detected gas chromatography were arabinose, galactose, rhamnose, xylose, galacturonic acid. dialyzed mucilage solution characterized SEC/MALS/VD/DRI (size-exclusion coupled with online multi-angle light scattering, viscometer detectors, differential refractive index) revealed fractions molecular weight (M w ) ranging from 15.3–15.7 × 106 g mol−1 CE extracts about 16.7–17.5 × 106 g mol−1 extracts. Dynamic oscillatory testing been used to study concentration 0.50–3.00 % (w/v) at 25 °C. profiles showed similar behavior. At low frequency ( G"). If safely controlled, alternative energies like microwaves could extract soluble polymers comparable commercial ones, conventionally extracted.
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