Two level half factorial design for the extraction of phenolics, flavonoids and antioxidants recovery from palm kernel by-product

Wong, Wah Heng; Lee, Wei Xiong; Ramanan, Ramakrishnan Nagasundara; Tee, Lee Hong; Kong, Kin Weng; Galanakis, Charis M.; Jian, Sun; Prasad, K. Nagendra

doi:10.1016/j.indcrop.2014.09.049

Cited by 114 publications

(41 citation statements)

References 34 publications

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“…It should be noted that the effect of ultrasonic treatment time seems weaker than extraction temperature and liquid/solid ratio. Moreover, like previously reported by Wong et al (2015), the liquidto-solid ratio had a significant influence on the recovery of phenolic compounds (Fig. 2c), giving the highest values when the liquid-to-solid ratio was 20.…”

Section: Resultssupporting

confidence: 86%

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Zhu¹,

Guan²,

Guo³

et al. 2016

International Agrophysics

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A b s t r a c t. Response surface methodology was used to optimize experimental conditions for ultrasound-assisted extraction of valuable components (anthocyanins and phenolics) from purple sweet potatoes using water as a solvent. The Box-Behnken design was used for optimizing extraction responses of anthocyanin extraction yield, phenolic extraction yield, and specific energy consumption. Conditions to obtain maximal anthocyanin extraction yield, maximal phenolic extraction yield, and minimal specific energy consumption were different; an overall desirability function was used to search for overall optimal conditions: extraction temperature of 68ºC, ultrasonic treatment time of 52 min, and a liquid/solid ratio of 20. The optimized anthocyanin extraction yield, phenolic extraction yield, and specific energy consumption were 4.91 mg 100 g -1 fresh weight, 3.24 mg g -1 fresh weight, and 2.07 kWh g -1 , respectively, with a desirability of 0.99. This study indicates that ultrasound-assisted extraction should contribute to a green process for valorization of purple sweet potatoes.

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Section: Resultssupporting

confidence: 86%

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Zhu¹,

Guan²,

Guo³

et al. 2016

International Agrophysics

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“…However, the TFC obtained from other sources of flavonoids are widely analyzed. Thus, the winery sludge or palm kernel byproducts Wong et al, 2015) showed lower content in TFC than the fig co-products samples analyzed in this work.…”

Section: Total Phenol Total Flavonoid and Total Anthocyaninsmentioning

confidence: 59%

Assessment of chemical, physico-chemical, techno-functional and antioxidant properties of fig (Ficus carica L.) powder co-products

Viuda‐Martos

Barber

Fernández‐López

2015

Industrial Crops and Products

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“…The performed optimization of the HAE response by RSM provides a strong solution that minimizes the errors with a short number of experimental trials as has been demonstrated elsewhere (Roselló-Soto et al, 2015;Wong et al, 2015). The multivariable fitting decreases the number of parameters needed to analyze the response leading to better estimations, reducing their interval of confidence and allowing predicting the response behavior.…”

Section: Numerical Individual and Global Optimal Conditions That Maximentioning

confidence: 95%

Enhanced extraction of phenolic compounds using choline chloride based deep eutectic solvents from Juglans regia L.

Vieira

Prieto

Barros

et al. 2018

Industrial Crops and Products

116

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A B S T R A C TThe extraction of phenolic compounds from walnut leaves (Juglans regia L.) was optimized using heat-assisted extraction and deep eutectic solvents based on choline chloride and carboxylic acids. A preliminary solvent screening was performed using a selected group of carboxylic acids as hydrogen bond donors, showing that the highest extraction yield of phenolic compounds was obtained using choline chloride mixtures with butyric or phenylpropionic acid at a mole ratio 1:2, with 20% of water (w/w). The extraction conditions (time, temperature and water proportion) were then optimized by an experimental design, assisted by response surface methodology. To evaluate the response, the three most abundant compounds identified by HPLC (neochlorogenic acid, quercetin 3-O-glucoside and quercetin O-pentoside) were quantified. Additionally, the solid/liquid ratio effect at the optimal conditions, in dose-response format, was studied in view of its upscale, not showing any significant decrease until 140 g/L. The results here presented provide valuable information towards the design of a process in a pre-industrial form for the extraction of phenolic compounds from J. regia leaves using deep eutectic solvents.

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Two level half factorial design for the extraction of phenolics, flavonoids and antioxidants recovery from palm kernel by-product

Cited by 114 publications

References 34 publications

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology

Assessment of chemical, physico-chemical, techno-functional and antioxidant properties of fig (Ficus carica L.) powder co-products

Enhanced extraction of phenolic compounds using choline chloride based deep eutectic solvents from Juglans regia L.

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