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Selection and Evaluation of 21 Potato (Solanum Tuberosum) Breeding Clones for Cold Chip Processing

1
Department of Bio-Health Technology, Kangwon National University, Chuncheon 200-701, Korea
2
KPBR (Korea Potato Breeding Resource Bank), Kangwon National University, Chuncheon 200-701, Korea
*
Author to whom correspondence should be addressed.
Foods 2019, 8(3), 98; https://doi.org/10.3390/foods8030098
Received: 11 February 2019 / Revised: 6 March 2019 / Accepted: 11 March 2019 / Published: 14 March 2019
(This article belongs to the Special Issue Safety, Quality and Processing of Fruits and Vegetables)
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Abstract

Quality evaluations in potatoes are of necessity to meet the strict demands of the chip processing industry. Important parameters assessed include specific gravity, dry matter content, chip color, reducing sugars, and glycoalkaloids. This study was designed with the purpose of identifying specialized potato clones with acceptable qualities for processing chips, in comparison with two selected control varieties, Dubaek and Superior. As a result, high dry matter and specific gravity were observed for three potato clones, and the quantified ά-solanine levels ranged from 0.15 to 15.54 mg·100 g−1 fresh weight (FW). Significant variations (p < 0.05) in reducing sugar levels were observed in clones stored at different temperature conditions. After reconditioning of the tubers at 22 °C for 21 days, a significant drop in reducing sugar levels was recorded. In addition, fried chips for each potato clone were evaluated, and the color measured on the basis of the Snack Food Association (SFA) chip color score standard. Reconditioned tubers exhibited much lighter and better chip color compared to their counterparts cold-stored at 4 °C. This study observed that for quality processing of potato chips, clones with combined traits of high dry matter, low levels of glycoalkaloids and reducing sugars, and acceptable chip color should be used as raw materials. View Full-Text
Keywords: chip processing; cold storage; reconditioning; reducing sugar; potato chip processing; cold storage; reconditioning; reducing sugar; potato
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Wayumba, B.O.; Choi, H.S.; Seok, L.Y. Selection and Evaluation of 21 Potato (Solanum Tuberosum) Breeding Clones for Cold Chip Processing. Foods 2019, 8, 98.

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