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Study on extraction process and the stability of walnut shell brown pigment

Xinru Shao

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Abstract

Brown pigment was extracted from wild walnut shell of Changbai Mountain,and its stability was studied.Results showed that the optimal extraction conditions were material/liquid ratio 1∶25,alcohol concentration 50%,extraction temperature 70 ℃,and extraction time 1.5 h.The pigment dissolved in ethanol,acetone,and has high fever stability,light stability,acid stability,anti-oxidant ability relatively and anti-restore ability relatively.The pigment was cheap,safety,convenient and has high application value.

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What this paper is about

Brown pigment was extracted from wild walnut shell of Changbai Mountain,and its stability was studied.Results showed that the optimal extraction conditions were material/liquid ratio 1∶25,alcohol concentration 50%,extraction temperature 70 ℃,and extraction time 1.5 h.The pigment dissolved in ethanol,acetone,and has high fever stability,light stability,acid stability,anti-oxidant ability relatively and anti-restore ability relatively.The pigment was cheap,safety,convenient and has high application value.

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Available abstract

Brown pigment was extracted from wild walnut shell of Changbai Mountain,and its stability was studied.Results showed that the optimal extraction conditions were material/liquid ratio 1∶25,alcohol concentration 50%,extraction temperature 70 ℃,and extraction time 1.5 h.The pigment dissolved in ethanol,acetone,and has high fever stability,light stability,acid stability,anti-oxidant ability relatively and anti-restore ability relatively.The pigment was cheap,safety,convenient and has high application value.

Key concepts: Pigment, Extraction (chemistry), Acetone, Chemistry, Chromatography, Shell (structure), Food additive, Ethanol

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