Mallek-Ayadi Sana, Bahloul Neila, Kechaou Nabil
Research Group of Agri-Food Processing Engineering, Laboratory of Applied Fluid Mechanics, Process Engineering and Environment, National School of Engineers of Sfax, University of Sfax, Soukra Road, BP 1173, 3038 Sfax, Tunisia.
Research Group of Agri-Food Processing Engineering, Laboratory of Applied Fluid Mechanics, Process Engineering and Environment, National School of Engineers of Sfax, University of Sfax, Soukra Road, BP 1173, 3038 Sfax, Tunisia.
Food Chem. 2017 Apr 15;221:1691-1697. doi: 10.1016/j.foodchem.2016.10.117. Epub 2016 Oct 26.
The aim of this work is to investigate the phytochemical composition and functional properties of the melon peels, considered as a by-product. Melon peels (maazoun cultivar) are rich in nutritional ingredients such as carbohydrates (69.77%) and ash (3.67%). They contain significant amounts of total dietary fibers (41.69%) and antioxidants as polyphenols and flavonoids (332mg/100g extract and 95.46mg/100g extract, respectively). The identification and the quantification of the phenolic compounds of melon peels were performed by high performance liquid chromatography apparatus. The obtained results indicate that hydroxybenzoic acids and flavones constitute their main phenolic classes. 3-Hydroxybenzoic acid is the major phenolic compound in the melon peels by 33.45mg/100g, followed by apigenin-7-glycoside (29.34mg/100g). Determination of the functional properties (water and oil retention capacities) and color shows that melon peels have properties that may be useful in industrial applications.
这项工作的目的是研究被视为副产品的甜瓜皮的植物化学成分和功能特性。甜瓜皮（maazoun品种）富含营养成分，如碳水化合物（69.77%）和灰分（3.67%）。它们含有大量的总膳食纤维（41.69%）以及抗氧化剂，如多酚和黄酮类化合物（分别为332mg/100g提取物和95.46mg/100g提取物）。通过高效液相色谱仪对甜瓜皮中的酚类化合物进行了鉴定和定量。所得结果表明，羟基苯甲酸和黄酮类构成了它们的主要酚类类别。3-羟基苯甲酸是甜瓜皮中主要的酚类化合物，含量为33.45mg/100g，其次是芹菜素-7-糖苷（29.34mg/100g）。对功能特性（保水和保油能力）和颜色的测定表明，甜瓜皮具有一些可能在工业应用中有用的特性。
