Journal
APPLIED SCIENCES-BASEL
Volume 8, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/app8101905
Keywords
black goji berry; phenolics; antioxidants; accelerated solvent extraction; response surface methodology
Categories
Funding
- Beijing Normal University-Hong Kong Baptist University United International College [R201714]
- Zhuhai Higher Education Construction Project (Zhuhai Key Laboratory of Agricultural Product Quality and Food Safety)
- Beijing Normal University-Hong Kong Baptist University United International College
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This study aims to provide fundamental knowledge for the use of black goji berry and determine the optimum process parameters that produce maximum phenolics from black goji berry through accelerated solvent extraction (ASE). The optimal extractions of phenolics and antioxidants from black goji were explored via the ASE techniques, applying the response surface methodology (RSM) design. After reaching the optimal conditions for single factors, the optimal ASE extraction conditions were found through a total of 17 runs following the Box-Behnken design (BBD) from RSM. The maximum yield of total phenolic content (TPC) was 17.92 mg GAE/g under the best extraction conditions: an extraction temperature of 89.38 degrees C, an ethanol concentration of 70% and an extraction time of 13 min. This study indicates that the optimal extraction conditions could serve as the scientific basis for scaled-up industrial production. Black goji berry could be a viable source of nutraceuticals due to the abundance of antioxidant and phenolic substances.
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