Two level half factorial design for the extraction of phenolics, flavonoids and antioxidants recovery from palm kernel by-product
作者： Wah Heng Wong , Wei Xiong Lee , Ramakrishnan Nagasundara Ramanan , Lee Hong Tee , Kin Weng Kong
DOI: 10.1016/J.INDCROP.2014.09.049
关键词:
摘要: Abstract Every year palm oil industry in Malaysia produces enormous quantity of by-products and has great potential to be reutilized as good source antioxidants. In this study, a two level half factorial design was employed recover phenolics, flavonoids antioxidants from kernel by-product. The assay included the following independent factors: pH (2–6), ethanol concentration (20–80%), liquid solid ratio (10–100 mL/g), temperature (30–80 °C) time (30–300 min). Half determine significant contribution above factors towards antioxidant capacity (total activity, DPPH FRAP), total phenolic flavonoid contents. Among, all examined, are very ( p 0.0001), obtaining higher Thus, by-product can proposed used natural antioxidant.
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