혈당측정기를 이용한 감자 괴경의 포도당 분포 분석과 이의 가공적성 평가에의 활용
In an effort to investigate special distribution of glucose content of potato tuber of a cultivar 'Superior' after harvest, a whole tuber was longitudinally cut into halves and cut-surface was divided into 11 regions. Approximate glucose concentration of each section was determined using a...
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| Published in: | Weon'ye gwahag gi'sulji Vol. 32; no. 2; pp. 171 - 177 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | Korean |
| Published: |
한국원예학회HST
2014
한국원예학회 |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | In an effort to investigate special distribution of glucose content of potato tuber of a cultivar 'Superior' after harvest, a whole tuber was longitudinally cut into halves and cut-surface was divided into 11 regions. Approximate glucose concentration of each section was determined using a commercial blood glucose meter. Higher level of glucose was detected in the outer layers of tissue than inner part of tuber although there were lower coefficients of variation value, 37.4% and 34.1% among individual tubers and among defined sections, respectively. A positive correlation between the whole tuber and individual section was existed in glucose content, where the central pith tissue gave the highest coefficient (r = 0.921) and bud end tissue did the lowest (r = 0.544). Glucose content of the tubers stored for 4 months at $2.0^{\circ}C$ was 5.5 fold higher compared to the tubers kept in ambient temperature. The chip color of the former tubers was much brighter than those of the latter tubers. The result obtained in the present study suggests that the blood glucose meter can be used to a rapid and simple evaluation of glucose content and therein be applied to estimate the processing quality of potato tubers during postharvest handling. 감자('수미') 괴경을 종단으로 절단하고, 상 중 하 및 주변부와 중심조직으로 구분하여 합계 11개 부위를 혈당측정기로 포도당 수치를 구하였다. '수미' 감자는 개체간(변이계수 = 37.4%) 및 부위별(변이계수 = 34.1%)로 포도당 수치가 달랐으나, 주변부의 포도당 농도가 중심부보다 높게 측정되었다. 괴경 전체와 각 부위 사이의 포도당 농도 상관관계는 중앙부위에서 높게 측정되어(r = 0.921), 중앙 부위의 당 수치가 괴경 전체를 대표할 수 있었다. 수확 후 $2.0{\pm}1.0^{\circ}C$에서 4개월간 저장한 감자의 포도당 함량은 상온에서 저장한 감자의 당 함량보다 5.5배나 높았다. 저온에 저장한 감자의 칩 색깔은 진한 갈색이었고, 상온 저장 감자의 칩은 밝은 미색이었다. 이러한 결과는 혈당측정기로 감자 중심부 조직의 포도당 함량을 측정하여 수확 당시 및 저장 중인 감자의 가공적합성을 신속하게 판정하는 기술로서 그 활용가치가 크다고 판단되었다. |
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| Bibliography: | KISTI1.1003/JNL.JAKO201415641085280 G704-000900.2014.32.2.018 |
| ISSN: | 1226-8763 2465-8588 |
| DOI: | 10.7235/hort.2014.13128 |