Scholarlink

<p>This study compared the Degla-Beida (DB) and Mech-Degla (MD) date varieties in terms of morphological attributes, biochemical composition, microwave drying kinetics and functional characteristics. DB dates were larger and heavier than MD dates, with higher sugar (72.41%) and ash content (2.04%). Both varieties reached 5–7% moisture content, with DB being slightly higher. DB powder contained more sugars (76.10%) and lipids (0.49%) and showed higher polyphenols (1046.01 mg GAE/100g), flavonoids (298.67 mg QE/100g), and antioxidant activity (IC<sub>50</sub> DPPH: 0.40 mg/ml, IC<sub>50</sub> ABTS: 0.73 mg/ml) compared to MD. MD powder demonstrated superior water retention (98.33%) and flow properties (Carr’s index: 5.78, Hausner ratio: 1.07). FTIR analysis showed that microwave drying preserved essential bonds in both powders, while SEM revealed crystalline morphology in MD and densely packed fibers in DB. This study highlights the nutritional, functional, and industrial importance of these date varieties after MW processing.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effects of microwave drying on physicochemical characteristics, microstructure and antioxidant activities of date fruit powders

  • 期刊论文

  • 发表日期：

    2025年6月14日

查看全文
  • Yassine Noui,
  • Adel Lekbir,
  • Hamza Moussa,
  • Maamar Haffas,
  • Abla Bousselma,
  • Samir Hameurlaine,
  • Hichem Tahraoui,
  • Jie Zhang,
  • Fehmi Boufahja,
  • Hamdi Bendif,
  • Abdeltif Amrane,
  • Walid Elfalleh

摘要

This study compared the Degla-Beida (DB) and Mech-Degla (MD) date varieties in terms of morphological attributes, biochemical composition, microwave drying kinetics and functional characteristics. DB dates were larger and heavier than MD dates, with higher sugar (72.41%) and ash content (2.04%). Both varieties reached 5–7% moisture content, with DB being slightly higher. DB powder contained more sugars (76.10%) and lipids (0.49%) and showed higher polyphenols (1046.01 mg GAE/100g), flavonoids (298.67 mg QE/100g), and antioxidant activity (IC50 DPPH: 0.40 mg/ml, IC50 ABTS: 0.73 mg/ml) compared to MD. MD powder demonstrated superior water retention (98.33%) and flow properties (Carr’s index: 5.78, Hausner ratio: 1.07). FTIR analysis showed that microwave drying preserved essential bonds in both powders, while SEM revealed crystalline morphology in MD and densely packed fibers in DB. This study highlights the nutritional, functional, and industrial importance of these date varieties after MW processing.