• 한국식생활문화학회지
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• 제11권3호
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• pp.385-392
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• 1996

The soluble solid of red pepper was extracted by water in order to investigate changes of soluble solid content by different extraction temperature $(4{\sim}90^{\circ}C)$ and time $(1/2{\sim}3\;hrs)$, and the contents of carotenoid, capsaicinoids, free sugar, organic acid, free amino acid in soluble solid were measured. Most of soluble solid in red pepper was extracted within the first 2 hrs and $93{\sim}98%$ of total soluble solid was extracted during the first 30 min. The contents of carotenoid increased by increasing extraction time and temperature, but decreased by increasing extraction time at $60^{\circ}C$ and $90^{\circ}C$. ${\beta}$-carotene content was sharply decreased after 2 hrs at $90^{\circ}C$. The content of capsaicinoid was sharply increased between 1 hr and 2 hr. Fructose and glucose in red pepper were extracted in the range of $83.8%{\sim}96.4%$ and the contents of free sugar gradually increased by increasing extraction time and temperature. The content of organic acid was gradually increased by increasing extraction time and temperature and the greatest amount of organic acid was extracted during the first 30 min of extraction time. The content of free amino acid was decreased by increasing extraction temperature.

• 생물환경조절학회지
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• 제10권4호
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• pp.244-250
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• 2001

저온은 배추 묘에서 1주일동안 RNA함량과 단백질 함량을 증가시켰고, 당 함량에 있어서도 많은 변화를 유발했을 뿐만 아니라 저온순화시 치사온도에서 생존율 또한 증가하였다. 이런 결과에서 보듯이 이러한 변화는 내동성의 발달과 관련되어 있는 것으로 생각할 수 있다. 5$^{\circ}C$에서 처음 24시간처리 했을 때 12시간 이후부터 내동성이 증가했으며 5일째 가장 크게 증가하였다. 치사온도에서의 생존율도 저온처리한지 12시간 후부터 증가해서 5일 후 가장 높은 생존율을 보였다. 수용성당 함량은 저온순화 한지 1일 후부터 크게 증가했다. 몇몇 주요한 당 함량에서 볼 수 있듯이 포도당(Glucose)은 저온처리된 배추묘에서 함량이 가장 많은 당 성분으로 저온처리된 배추묘와 처리되지 않은 배추묘 사이에서 1일 후부터 계속 큰 차이를 나타냈으며 과당(Fructose)도 포도당과 비슷한 경향을 보였다. 저온처리를 시작할 때 자당(Sucrose)이 가장 많이 증가하는 경향을 보였고 처리 9시간 이후부터 큰 차이를 나타내기 시작했다. 당의 정량분석결과 배추묘에서 주요한 당 성분은 포도당이었으나, 저온처리시 크게 증가한 당 성분은 자당이었다. 최대내동성에 도달하기까지 5일이 걸렸으나 탈순화시 9시간후부터 생존율이 서서히 감소해 24시간만에 저온순화로 획득된 내동성이 모두 상실되었다. 전체 RNA와 수용성 단백질 함량 역시 24시간 경과 후 현저히 감소하였다.

• 동아시아식생활학회지
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• 제16권6호
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• pp.740-746
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• 2006

The proximates, vitamin C, minerals, and fatty acids of five potato cultivars were evaluated by AOAC methods, the hydrazine method, ICP-AES, and gas chromatography, respectively. The proximate analyses; vitamin C, reducing sugar, and soluble solid contents; and mineral and fatty acid compositions were significantly different among the five cultivars. The Superior cultivar contained a higher carbohydrate content and higher Ca/P ratio and lower levels of crude protein and Na. The Atlantic cultivar contained significantly higher amount of energy, carbohydrate, reducing sugar, vitamin C, SEA, and MUFA, and significantly lower amount of minerals and PUFA. The Shepody cultivar contained significantly higher amount of carbohydrate and MUFA, and significantly lower amount of soluble solid, vitamin C, and SFA. In addition, the P, Fe, Mg, Cu, and Al levels were significantly higher in Shepody, and Zn content was significantly lower. The Jopung cultivar contained significantly higher levels of moisture and Na, and significantly lower levels of soluble content, reducing sugar, carbohydrate, crude protein, and fat. Finally, the Namsuh cultivar contained significantly higher amount of soluble solid, crude protein, K, Mg, and Al, and significantly lower amount of reducing sugar.

• 한국식품저장유통학회지
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• 제2권2호
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• pp.259-268
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• 1995

Physico-chemical components which are closely related to processed products were investigated on 10 varieties of Cheju citrus fruits. Juice ratio of Hungjin was the highest, 49.2%, while Sankyool was the lowest, 4.2%, which showed great differences among varieties. Peel ratio of Dangyooja was the highest, 46.1%, while both Navel orange and Hungjin were relatively low. Soluble solid($^{\circ}$Brix) was relatively high In Sankyool, Meiwa Kumquat, Sambokam and Iyo. Acid content was the highest, 4.86% in sudachi and relatively high in Sankyool, Natsudaidai and Dangyooja. The $^{\circ}$Brix to acid content ratio was 13.9 in Meiwa Kumquat and more than 10 in Navel orange and Hungjin. Total sugar contents of Juice were 2.78∼10.94%, while reduced sugar contents were 1.63∼6.38% which showed higher in Meiwa Kumquat, Iyo and Navel Orange. Hesperidin and naringin, the sources of biiter taste and cloudness were low in Hungjin and Iyo. Soluble solid($^{\circ}$Brix) of citrus juice showed highest statistical relationship(r=0.907) with total sugar, and was highly significant at 1% level.

• 아시안잔디학회지
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• 제3권2호
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• pp.83-88
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• 1989

This Study was designed to know the growth Status under various photoperiod using Zoysia matrella. The experimental plots were split into such groups as control (full sunlight) 3hour, 6hour and 9hour photoperiod by three replication of completely randomized design. Chlorophyll content was analyized by mackine method and total soluble sugar by anthrone method. The result obtained from this experiment was as fol1 lows ; l. Dry weight was high in the control and 9hour plots. Its decrease remarkably occured in the short day plots 2. Leaf growth woes remarkaly decreased by short day condition. Six hour was considered as critical duration for leaf growth. 3. The growth of rhizome in the 9hour and control plots was good. New development of rhizome in the' short day plots was very slow compare to the control plot. 4. Chlorophyll content was high at l8 days after transplanting and then decreased. Its content in the short day plots severely decreased. 5. The content of soluble sugar in the control was low at early growth stage and high at late growth stage. It was found that the shorter the exposure time to sunlight, the higher the ratio of sugar content.

• Preventive Nutrition and Food Science
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• 제5권1호
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• pp.32-36
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• 2000

Prickly pear juice(PPJ) extracted from prickly pear fruit (Opuntia ficus-indica)was used as raw material for the production of alcoholic beverages. Prickly pear juice (PPJ) had 0.88 oBrix of soluble solid, pH 3.96 and 0.14% of total acidity. Alcohol fermentation of 25% PPJ including 22 oBrix of sugar and 1$\times$106 of inoculum was suitable for alcohol fermentation indicating the rapid decrease of sugar content. The 22 oBrix of sugar in PPJ (25%)GJ (50%) mixture was changed to 6.5 oBrix after fermentation at 3$0^{\circ}C$ for 7 days. The alcohol content was 9.2% (w/v). PPJ (70%)/GJ (30%) mixture produced alcoholic beverage with 6.9% alcohol content resulting in the gradual decrease of soluble for 7 days. On the other hand, PPJ (50%)/GJ(50%) mixture carried out completely the alcohol fermentation at 22$^{\circ}C$ for 6 days and enhanced the red color of alcoholic beverages.

• 원예과학기술지
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• 제30권6호
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• pp.642-649
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• 2012

본 연구는 온주밀감에서 유엽과와 직과의 착과 형태에 따른 과실의 생장과 당산 특성을 구명코자 수행하였다. 과실의 종경, 횡경, 과형지수(횡경/종경), 과중 및 크기 분포를 포함하는 수확기 과실의 생장에 있어서 유엽과와 직과에 따른 차이는 없었다. 만개 후 100일부터 수확기까지 과실 발육과 더불어 지속적으로 과즙의 총가용성고형물의 농도는 증가하고 산도는 감소하여 당산비는 증가하였다. 유리당은 지속적으로 증가한 반면 유기산은 감소하였다. 이들 경향은 각각 자당의 증가와 구연산의 감소와 관계되었다. 그러나 착과 형태가 과즙의 총가용성고형물, 산도, 당산비, 유리당 및 유기산 조성에 미치는 영향은 나타나지 않았다. 또한 유엽과와 직과에 가장 인접한 잎에서의 광합성율과 SPAD 값에 의한 엽록소 지수 간에도 차이가 없었다. 본 연구결과는 온주밀감에서 유엽과와 직과의 착과 형태에 따른 과실의 생장과 당산 특성에 차이가 없음을 나타내었다.

• 한국식품영양과학회지
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• 제35권8호
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• pp.1051-1056
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• 2006

온도와 ATP 증가에 따라 사과.당근 배합비율과 상관없이 혼합주스의 투과플럭스가 비례적으로 증가했으며, 특히 온도변화에 따른 투과플럭스의 증가가 뚜렷했다. 사과와 당근비가 3:1인 실험구에서 가용성 고형분과 총당의 함량이 높게 측정되었고, 가용성 고형분의 경우 시료배합비율의 영향이, 총당의 경우 온도의 영향이 큰 것으로 나타났다. 시료배합비율에 따른 비타민 C 함량차이는 크지 않았으나 당근의 함량이 많을수록 비타민 C의 함량이 높게 측정되었고, 압력증가에 따른 비타민 C 함량 증가가 뚜렷했다. 사과의 함량이 높을수록 산도도 높았고, 온도증가에 따른 산도의 증가도 뚜렷했다. 한외여과 결과, 전 시료에 걸쳐 우수한 청징효과를 나타내었고, 사과와 당근비가 3:1인 실험구에서 그 청징효과가 두드러졌으며, 또한 점도변화도 가장 컸다. 또한 공정최적화 결과 공정온도 및 ATP가 각각 $44.97^{\circ}C$, 113.57 kPa이고 사과의 혼합비율이 28.50%인 경우 $flux=0.216\;L/m^2.h$, soluble $solids=10.39^{\circ}Brix$, total sugar=71.32 mg/mL, vitamin C=315.18 mg%, acidity=7.78 mL, turbidity=0.017, viscosity=1.44 cp인 사과.당근 혼합과채주스를 제조할 수 있는 것으로 나타났다.

• 한국자원식물학회지
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• 제28권3호
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• pp.329-332
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• 2015

The effect of storage temperature and the storage period of hardy kiwifruits on the fruit firmness, soluble solids and fruit weight were studied in this work. The investigation was carried out on the Sae-Han cultivar of Actinidia arguta. It has an edible smooth skin and contains high amounts of sugar and vitamin C (ascorbic acid). In this research, the measurement of fruit firmness, soluble solids, and fruit weight were carried out at various temperatures (5, 10, 15, and 20℃) during 14 days. Fruit firmness rapidly decreased and soluble solids content increased at 15 and 20℃. We also investigated the correlation between fruit firmness and soluble solids content. There was a strong correlation between fruit firmness and soluble solids content. That means that fruit firmness affect the soluble solids content of hardy kiwifruit.

• 농업과학연구
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• 제41권4호
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• pp.291-298
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• 2014

Plastic film houses are directly associated with increases in plant growth and yield of vegetable crops through a year round cultivation, however, at the same time temperature stresses are one of fates which are difficult to avoid during crop growth. The objective of this study was to examine the translocation and distribution of minerals (N, P, K) and carbohydrates as well as seasonal fluctuation of mineral uptake and carbohydrate production in cucumber plant grown under moderately high temperature. The temperature treatments consisted of 2-layers film houses (optimal temp.) and 3-layers (high temp.). Shoot growth of cucumber plants were linearly increased until 14 weeks after transplanting (WAT) without any significant difference between both temperatures, and the slowdown was observed from 16 WAT. The level of soluble sugar and starch was slightly greater in optimal temperature compared to the high. Cumulative accumulation of soluble sugar was significantly different before and after 12 WAT in both treatments, whereas starch level represented a constant increase. Monthly production of soluble sugar reached the peak between 12 to 16 WAT, and starch peaked between 4 to 8 WAT and 12 to 16 WAT. Total uptake of N, P and K in optimal and high temperature conditions was $18.4g\;plant^{-1}$ and 17.6 for N, 4.7 and 5.1 for P, and 37.7 and 36.2 for K, respectively, and the pattern of monthly N uptake between optimal and high temperatures was greater in early growth stage, whereas was greater in mid growth stage in both P and K. Thus, this study suggests that moderately high temperature influences much greater to photosynthesis and carbohydrate production than plant biomass and mineral uptake. On the basis of the present result, it is required to indentify analysis of respiration rates from plant and soil by constantly increasing temperature conditions and field studies where elevated temperatures are monitored and manipulated.