期刊
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
卷 24, 期 1, 页码 1367-1386出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10942912.2021.1967384
关键词
Black rose hip; Rosa pimpinellifolia L; Drying; Antioxidant; Rehydration; Modeling; Response surface methodology
资金
- King Saud University, Riyadh, Saudi Arabia [RSP-2021/197]
- Agricultural Research Station at North Carolina Agricultural and Technical State University (Greensboro) [NC.X337-5-21-170-1, NC.X341-5-21-170-1]
- National Institute of Food and Agriculture (NIFA)
The study optimized the convective drying process of R. pimpinellifolia fruit, finding the best operating conditions and revealing that drying process can enhance its quality, antioxidant activity, and phenolic compounds content.
Rosa pimpinellifolia, commonly known as the burnet rose, has shown huge functional properties and industrial potential. In this present study, the convective drying process was optimized to enhance the quality, antioxidant activity, and phenolic compounds. The influence of drying conditions on the drying and rehydration kinetics and mathematical modeling of the R. pimpinellifolia fruit (black rose hips) were investigated. Response surface methodology was used to detect the optimum drying conditions (i.e. temperature and air velocity). The optimum operating conditions were 67.21 degrees C and 1.75 m s(-1) providing maximum total phenolic compounds, total anthocyanin, DPPH radical scavenging and Ferric Reducing Antioxidant Power (FRAP) values of 1327 +/- 5 mg GAE/100 g, 491 +/- 2 mg c3g E/100 g, 110 +/- 2 mmol TE/g and 698.00 +/- 15 mmol ISE/g, respectively. The Page Model was the most fitted model to predict the drying kinetics. Vegas-galves and Peleg models were the most effective to describe the rehydration kinetics. The rehydration was more efficient at 60 degrees C compared to 20 and 40 degrees C. The convective drying increased hardness, cohesiveness, gumminess, and chewiness while decreasing springiness and resilience. Catechin, epicatechin, quercetin-3-glucoside, protocatechuic acid, chlorogenic acid, quercetin, rutin, fumaric acid, and gallic acid were the major phenolic compounds identified. The drying process thus improved the quality, antioxidant activity, and overall phenolic compounds of R. pimpinellifolia.
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