Abstract

본 연구는 콜드칩 가공용 감자 계통을 선발하고자, 47계통과 대조구 품종인 '대서', '수미', '구이벨리'의 수확 후, <TEX>$4^{\circ}C$</TEX>, <TEX>$8^{\circ}C$</TEX> 저온저장 및 <TEX>$20^{\circ}C$</TEX> 가온 조정처리에 따른 glucose 함량, 아크릴아마이드 함량 및 두 형질 간의 상관성을 비교 분석하였다. 대조구 품종 및 47계통 모두에서 수확 후, glucose 함량이 0.25% 이하, 아크릴아마이드 함량 1000ppb 이하로 나타났고, <TEX>$4^{\circ}C$</TEX> 저온저장에 의해 glucose와 아크릴아마이드 함량 모두 급격히 증가하였으며, H7, H13, H16, H40 등 4계통에서만 500ppb 이하로 검출되었다. <TEX>$8^{\circ}C$</TEX> 저온저장 역시 두 함량 모두 증가하였으나, <TEX>$4^{\circ}C$</TEX> 저온저장에 비해 비교적 낮게 나타났으며, <TEX>$20^{\circ}C$</TEX> 가온 조정에 의해서도 두 함량 모두 감소한 것으로 나타났다. 저온저장에 따른 glucose 함량과 아크릴아마이드 함량 간의 상호관계를 분석한 결과 정의 상관성을 확인할 수 있었다. 결론적으로 저온처리에도 낮은 glucose 함량을 나타낸 H7, H13, H16, H40계통들이 낮은 함량의 아트릴아마이드 함유한 것으로 나타나 콜드 칩 가공용 우수 감자 계통으로 선발할 수 있었다. In order to select potato clones for making cold chip, this study analyzed the glucose content, acrylamide content, and the correlation between the two properties after harvest, <TEX>$4^{\circ}C$</TEX> and <TEX>$8^{\circ}C$</TEX> low-temperature storage, and <TEX>$20^{\circ}C$</TEX> heating treatment of 47 breeding clones and control cultivars 'Atlantic', 'Sumi', and 'Gui Valley'. In all of the control cultivars and 47 clones, glucose content was below 0.25% and acrylamide content was below 1000 ppb just after harvest, but after <TEX>$4^{\circ}C$</TEX> low-temperature storage both the glucose content and acrylamide content increased rapidly and only 4 clones H7, H13, H16, and H40 showed a level below 500 ppb. In <TEX>$8^{\circ}C$</TEX> low-temperature storage as well both contents increased, but the increase was relatively smaller than that in <TEX>$4^{\circ}C$</TEX> low-temperature storage. In addition, <TEX>$20^{\circ}C$</TEX> heating treatment decreased both contents. In the results of analyzing the correlation between glucose content and acrylamide content at low-temperature storage, a positive correlation was observed. In conclusion, clones H7, H13, H16, and H40 showing low glucose content even at low-temperature treatment were found to contain less acrylamide and therefore they were selected as potato clones suitable for making cold chip.

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