• KOREAN JOURNAL OF CROP SCIENCE
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• v.36 no.3
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• pp.236-240
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• 1991

The objective of this research was to determine the effect of storage period on the cooking qualities of barley. The expansion rate and the water absorption rate of cooked barley were decreased with the increase of polishing degree. When the barley having the same degree of polishing were cooked for 50 minutes, both rates were showed negative correlation with the storage time by showing the lower values in the barley having longer storage periods. Whiteness of cooked barley did not showed any clear correlation with the storage period. The texture of cooked barley and the amylogram properties also did not showed any correlation with the storage period due to the effects of other factors such as harvesting stage and cultivating conditions.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 2003.04a
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• pp.137.2-138
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• 2003

농산물의 효율적인 가공.저장은 농산물의 안정된 공급과 물가안정에 크게 기여하며, 부가가치 향상과 식품관련산업의 국제경쟁력 강화에도 필수적인 요건이라 할 수 있다. 호박은 전국 각지의 유휴지에서 별다른 시비나 농약의 사용없이 재배가능한 농산물로 vitamin C 및 vitamin A의 전구체인 carotene과 무기질, 식이섬유, 전분, 자당, 포도당 등이 풍부하다. 호박은 이뇨작용과 산후부종에 효과가 인정되어 널리 이용되고 있으며, 당뇨병, 야맹증, 각막건조증 등에도 효과가 있다. 국민의 생활수준이 향상되고 사회구조가 변화함에 따라 식품소비의 양상도 크게 변화하여 편의식과 건강 지향적인 가공식품의 수요가 급격히 증가하고 있으며, 이에 부응하여 건강식품에 관한 다각적인 연구가 많이 행해지고 있으나 미비한 실정이다. 호박은 특히 수분함량이 많고 조직의 연화현상 등으로 저장성이 낮아서 경제성이 떨어지므로 호박을 이용한 다양한 가공제품의 개발이 요구된다. 호박의 이용성을 검토하고, 나아가 호박의 부가가치 향상 및 경쟁력을 가진 지역특산물화를 위하여 기능성을 갖춘 건강음료개발을 시도하였으며, 이러한 음료의 유통중 품질변화를 모니터링하였다. 호박음료의 유통중 품질변화는 저장온도(20, 30, 40, 50, 6$0^{\circ}C$) 및 저장기간(0, 2, 4, 6, 8 week)에 따른 중심합성실험계획으로 실험을 행하여, 저장에 따른 당, 산, pH, 갈색도 및 관능적 특성에 대하여 반응표면분석을 하였다. 당도, 산도, pH 및 갈색도의 경우 저장시간에 영향을 많이 받는 것으로 나타났으며, 관능적 특성 중 전반적인 기호도에 있어서는 저장온도 및 저장시간에 영향을 많이 받는 것으로 나타났다. 당도, 산도, pH의 경우 저장온도 및 저장기간에 따라 큰 차이를 보이지 않았다. 갈색도의 경우 저장온도 51.1$0^{\circ}C$ 및 저장기간 7.33 week일 때 최대의 갈색도로 나타났다. 전반적인 기호도 있어서는 저장온도 32.52$^{\circ}C$ 및 저장기간 0.30 week일 때 우수한 것으로 나타났다.

• Food preservation and processing industry
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• v.4 no.1
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• pp.57-64
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• 2005

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.4
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• pp.549-554
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• 2003

This study was conducted to investigate the effect of storage atmosphere sterilization using acidic electrolyzed water for table grapes (Vitis labrusca L.). ‘Campbell Early’ and ‘Sheridan’ grapes were stored at $0^{\circ}C$ for 12 weeks under the atmosphere that was passed through an acidic electrolyzed water for sterilization. Storage atmosphere sterilization using acidic electrolyzed water did not influence on the changes in soluble solids, titratable acidity, soluble tannins, anthocyanins, ethanol, acetaldehyde and organoleptic quality attributes including color, aroma, texture, juiciness and sweetness of both varieties during storage. Growth of bacteria and fungus in grapes during storage, however, was inhibited by storage atmosphere sterilization. These results suggest that the storage atmosphere sterilization using acidic electrolyzed water can be utilized for improving the storage life of table grapes.

• Korean journal of food and cookery science
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• v.13 no.3
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• pp.278-285
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• 1997

The effects of three surfactants (SSL, Dimodan, and SE1670) on the properties of cooked nonwaxy and waxy rice during storage were investigated by sensory evaluation, instrumental test, and measurement of retrogradation degree. The results of sensory evaluation revealed that the overall quality of cooked rice was affected by textural characteristics. The addition of surfactant decreased the roughness and hardness of cooked rice, however, increased the stickiness and moistness during the storage in the order of SE, SSL, and Dimodan. In instron test, the hardness of surfactant-added cooked rice was significant lower than that of control. The addition of surfactant decreased the degree of retrogradation both in cooked nonwaxy and waxy rices.

• Korean Journal of Food Science and Technology
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• v.54 no.4
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• pp.437-444
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• 2022

This study investigated the optimal quality characteristics of sauerkraut made by adding 0.5, 1.0, 1.5, 2.0, and 2.5% (w/w) sea salt to cabbage according to the storage period. The results showed that the pH and salinity of 0.5-2.5% sauerkraut decreased, while its total acidity increased during storage. After 20 d of storage, 1.5% or less sauerkraut showed low yellowness, but high brightness and hardness. Moreover, the lactic acid bacteria in 0.5-2.5% sauerkraut maintained at least 7.06 log CFU/mL until 28 d of storage, suggesting that the lower the salt concentration, the higher were the amount of lactic acid bacteria. The coliform group was not detected after 4 d of storage. In conclusion, the quality characteristics of sauerkraut with a salt concentration of 1.5% or less were excellent until 20 d of storage at 4℃. This study provides valuable data for the safe and high-quality assessment of low-salt sauerkraut in the future.

• Korean journal of food and cookery science
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• v.23 no.3 s.99
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• pp.294-301
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• 2007

The objectives of this study was to examine the characteristics of Aralia pickles(soy sauce, salt) made with different CaCl$_2$ treatments and seasonings by documenting the changes that occurred the courses of preparation and preservation. The results indicated that the various pickle samples had no visible changes in pH, acidity or salinity. The sum of total viable bacteria and lactic acid bacteria increased gradually during the early stage of preservation and then accelerated growth was shown up until the fifth month of storage; a plateau was maintained until a decrease began at 6 months. We observed no visible changes in color during the preservation period. The sample treated with CaCl$_2$ exhibited a higher degree of hardness than the untreated sample, although no distinctive differences were noted during the sensory test.

• Applied Biological Chemistry
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• v.40 no.2
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• pp.117-122
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• 1997

The conditions of cold storage of Citrus unshiu Marc. var. miyagawa produced in Cheju were investigated. Compared to the citrus fruits stored at room temperature, the content of soluble solids, total sugar, vitamin C and specific gravity decreased slightly on the fruits stored at $4^{\circ}C$ and 87% relative humidity. Decay ratio and weight loss were below 10% on keeping freshness relatively till late of March during cold storage. Weight loss, decrease of firmness and soluble solids occured gradually during cold storage. Nevertheless seal-packaging with 0.02 mm LDPE film or wax-coating of citrus fruits were effective on weight loss and appearance, decay ratio increased for long-term storage. It was needed to control humidity in cold chamber for preventing from decay and weight loss. Edible part ratio was decreased gradually by respiration, and peel and tissue of fruits were softened slightly by 60 days of cold storage. Decay ratio and weight loss of full-ripened citrus fruits were little during the storage for 100 days, compared to the fruits harvested early. Appearance and taste of citrus fruits stored for 4 month were good relatively, but decay occured rapidly on seal-packaging fruits putting out of cold room for a few days. Because of the difficulty of long-term storage for early variety of Citrus unshiu, the conditions and periods of cold storage would be determined after considering the physicochemical properties of fruits.

• Korean Journal of Human Ecology
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• v.19 no.6
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• pp.1095-1102
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• 2010

Soy sprouts with Pungsannamulkong stored in covered polypropylene container with water(PCSS) or polypropylene film bag without water(PBSS) at $4^{\circ}C$ for 7 days. Changes in weight, instrumental textural hardness, color values and sensory attributes of soy sprouts were evaluated after 2, 4 and 7 day storage. Storage caused slight weight losses in PBSS, but not in PCSS. In the courses of storage the hardness of the heads decreased, while the stems maintained their hardness. The effect of storage periods on surface color changes were also determined. The stems of soy sprouts in PCSS had higher L values when stored for over 2 days. The b values of the stems in both PCSS and PBSS increased after over 2 day storage. The higher b values in the stems were found when kept in PBSS for 2 or 4 days, indicating more yellowish color. On the other hand, the heads and stems of soy sprouts had light green color. The soy sprouts in PCSS became greener with storage, but there was only small increase in greenness. Sensory panels perceived that the overall acceptability of soy sprouts decreased with storage. The overall acceptability of soy sprouts when kept in PCSS for 7 days were not as good as that of soy sprouts in PCSS for 4 days, although soy sprouts in PCSS had a significantly higher overall acceptability than those in PBSS when stored over 4 days(p<0.05). Therefore, PCSS could be possible to keep soy sprouts with good overall acceptability when stored 4 days at $4^{\circ}C$.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.05a
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• pp.330-333
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• 2004

본 연구는 ${\beta}$-cyclodextrin 처리를 이용하여 우유에서 cholesterol을 제거하여 호상요구르트를 제조하고 혈중 콜레스테롤 저하 물질인 달맞이꽃 종자유(EPO)의 양을 다르게 첨가하여 호상요구르트의 저장기간 중 이화학적 변화와 물성 및 관능적 특성을 살펴보았으며, 그 결과 pH는 저장기간 15일이 경과함에 따라 모든 군에서 pH의 저하가 일어났고, 각 실험군 간 유의적 차이는 없었다. 마찬가지로 산도도 저장기간 15일이 경과함에 따라 모든 실험군에서 계속적인 증가가 나타났으며, 실험군간 유의적 차이는 없었다. 지방산화도측정결과 TBA가(535nm)는 저장 0일에 0.045에서 저장 15일에 0.196까지 증가하였고, EPO 첨가 호상요구르트는 0.188까지 증가하였으나 실험군간 유의적 차이는 보이지 않았다. 점도는 ${\beta}$-CD를 처리하여 2% EPO를 첨가한 호상요구르트가 저장 0일에 3.7에서 저장 15일에 8.4로 가장 큰 점도 감소를 나타내었고, 저장 15일 동안 모든 군에서 점도감소가 나타났다. 관능검사결과 ${\beta}$-CD처리하여 EPO를 첨가한 호상요구르트의 산패취와 산패한 맛이 control보다 높았지만 저장기간이 지날수록 점차 낮아졌고, 신맛과 쓴맛은 control과 유사하게 나타났다. 결론적으로 EPO를 첨가한 호상요구르트는 이화학적 변화와 물성 및 관능적으로 긍정적인 결과로 나타나 산업화의 가능성을 보였다.