Solar drying, hygroscopic equilibrium and biochemical quality of Punica granatum Legrelliae's flowers

被引：9

作者：

El Ferouali, Hicham ^{[1
]}

Zoukit, Ahmed ^{[1
]}

Zehhar, Naima ^{[2
]}

Benkhalti, Fatiha ^{[2
]}

Bouamama, Hafida ^{[2
]}

Doubabi, Said ^{[1
]}

Abdenouri, Naji ^{[1
]}

机构：

[1] Cadi AYYAD Univ, LSET, Marrakech 4000, Morocco

[2] Cadi Ayyad Univ, Biotechnol Valorisat & Protect Agroressources Chi, Marrakech 4000, Morocco

来源：

JOURNAL OF APPLIED BOTANY AND FOOD QUALITY | 2018年 / 91卷

关键词：

Biochemical characterization; Punica granatum Legrelliae; quality; solar drying process; sorption; storage; L. EXTRACTS MANAGEMENT; ANTIOXIDANT CAPACITY; THIN-LAYER; CHEMICAL-COMPOSITION; POLYPHENOL OXIDASE; SORPTION ISOTHERMS; SENSORY QUALITY; SLICES; AIR; OPTIMIZATION;

D O I：

10.5073/JABFQ.2018.091.003

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Punica granatum Legrelliae is a valuable medicinal plant that is widely planted in Morocco. The equilibrium moisture content was investigated. Peleg model was found the most suitable to describe the sorption phenomenon. The drying kinetic of Punica granatum Legrelliae's flowers was investigated by using a convection solar dryer. Midilli-Kucuk model described well the drying curves' trend. The effective moisture diffusivity values were obtained. The Arrhenius relation, with an activation energy value of 92.91 +/- 2.51 kJ mol(-1) expressed the temperature effect on the diffusion coefficient. Finally, the effect of drying these flowers at different temperatures on their quality was investigated. To assess the quality of the product after solar drying, the color, polyphenols content, antioxidant activity, and polyphenoloxidase and peroxidase activities were considered. The best drying temperature for the preservation of color and bioactive molecules with antioxidant property was 40 degrees C.

引用

页码：14 / 23

页数：10

共 40 条

[1] SORPTION ISOTHERMS AND THERMODYNAMIC PROPERTIES OF POWDERED MILK [J].