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Optimization of microwave-assisted extraction of phenolics from potato and its downstream waste using orthogonal array design
Wu Tao; Yan Jun; Liu Ronghua; Marcone Massimo F.; Aisa Haji Akber; Tsao Rong
2012
Source PublicationFood Chemistry
ISSN0308-8146
Volume133Issue:4Pages:1292-1298
Abstract

While other extraction methods have been tempted, a microwave-assisted extraction (MAE) method coupled with the orthogonal array design was investigated for efficient extraction of the phenolic compounds in potato downstream wastes. Four parameters were examined for the MAE of the total phenolic content (TPC) and optimized at 60% ethanol, 80°C, 2 min, solid-to-solvent ratio 1:40 (g/ml). The MAE was proven more efficient than the conventional solvent extraction by refluxing. The optimized model showed that the downstream wastes, both the supernatant and the residue contained high TPC, particularly the former (11.0 ± 0.26 mg GAE/g DW). The antioxidant activities (DPPH and FRAP) closely correlated with the TPC of the samples (r = 0.92-0.97). Chlorogenic acid and caffeic acid were found to be the predominant phenolic acids. The extracts of the downstream wastes from potato processing can be a promising candidate for functional foods and nutraceutical ingredients.

KeywordMicrowave-assisted Extraction Phenolic Antioxidants Potato Downstream Waste Chlorogenic Acid Caffeic Acid Orthogonal Array Design
Subject AreaChemistry ; Food Science & Technology ; Nutrition & Dietetics
DOI10.1016/j.foodchem.2011.08.002
WOS IDWOS:000303847400025
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/1403
Collection省部共建新疆特有药用资源利用重点实验室
资源化学研究室
Affiliation1.Agr & Agri Food Canada, Guelph Food Res Ctr, Guelph, ON N1G 5C9, Canada
2.Univ Guelph, Dept Food Sci, Guelph, ON N1G 2W1, Canada
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Plant Resources & Nat Prod Chem, Urumqi 830011, Peoples R China
4.Jilin Univ, Sch Pharmaceut Sci, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Wu Tao,Yan Jun,Liu Ronghua,et al. Optimization of microwave-assisted extraction of phenolics from potato and its downstream waste using orthogonal array design[J]. Food Chemistry,2012,133(4):1292-1298.
APA Wu Tao,Yan Jun,Liu Ronghua,Marcone Massimo F.,Aisa Haji Akber,&Tsao Rong.(2012).Optimization of microwave-assisted extraction of phenolics from potato and its downstream waste using orthogonal array design.Food Chemistry,133(4),1292-1298.
MLA Wu Tao,et al."Optimization of microwave-assisted extraction of phenolics from potato and its downstream waste using orthogonal array design".Food Chemistry 133.4(2012):1292-1298.
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