• Food Science and Preservation
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• v.4 no.3
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• pp.237-243
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• 1997

Numerous variables affect product cooling rate of pressure cooling system for fruits and vegetables. These include carton vent area, initial and desired final product temperature, flow rate and temperature of the cooling air, product size, shape and thermal properties and product configuration(whether in bulk or packed in shipping cartons). This study was carried out to determine the influence of each of these variables as they affect cooling time. The opening ratio and number of the vent hole were recomended as 4∼10% and 2∼4ea., respectively, for a minimum alt flow resistance and for a uniform air flow pattern. In the cooling experiment for tomatoes and mandarins, optimum air flow rate was 0.04 m3/min.kg in terms of energy saving. The cooling air temperature should be about 2$^{\circ}C$ less than the desired final product temperature for reducing cooling time.

• BMB Reports
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• v.44 no.10
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• pp.692-697
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• 2011

To investigate the pathways of oxidoreductases in plants, 2 key components in thioredox systems i.e. thioredoxin h (Trx h) and NADPH-dependent thioredoxin reductase (NTR) genes were first isolated from tomatoes (Solanum lycopersicum). Subsequently, the coding sequences of Trx h and NTR were inserted into pET expression vectors, and overexpressed in Escherichia coli. In the UV-Visible spectra of the purified proteins, tomato Trx h was shown to have a characteristic 'shoulder' at ~290 nm, while the NTR protein had the 3 typical peaks unique to flavoenzymes. The activities of both proteins were demonstrated by following insulin reduction, as well as DTNB reduction. Moreover, both NADPH and NADH could serve as substrates in the NTR reduction system, but the catalytic efficiency of NTR with NADPH was 2500-fold higher than with NADH. Additionally, our results reveal that the tomato Trx system might be involved in oxidative stress, but not in cold damage.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• v.11 no.2
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• pp.447-453
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• 2006

This paper presents an area-based stereo algorithm suitable to real time applications. The core of the algorithm depends on the uniqueness constraint and on a matching process that allows for rejecting previous matches. The proposed approach is compared with the left right consistency constraint, being the latter the basic method for detecting unreliable matches in many area-based stereo algorithms. We used the watermelon and tomatoes for experiments.

• Proceedings of the Korean Society of Plant Biotechnology Conference
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• 2005.04a
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• pp.129-129
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• 2005

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• v.10 no.2
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• pp.237-240
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• 2005

• Journal of the Korean Society of Food Science and Nutrition
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• v.1 no.1
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• pp.9-16
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• 1972

Twenty kinds of minerel nutrient solution were prepared and supplied to the tomatoes planted in Norwegian quartz pots. These plants were cultured for nine weeks and several physiogical phenomena were observed during the growing period, and after harvest, the alkaloid contents were determined. The highest growth potential was in NS 3 group while the highest alkaloid content wasein KMg 18 group.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1995.10a
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• pp.97-99
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• 1995

원예생산시설에 대한 정부지원사업이 본격화 된 '91년부터 농가보급형 비닐하우스(1-2W형)는 '94년 현재 1,364ha가 농가에 보급되어 시설원예 현대화에 크게 기여하고 있지만, 피복자재를 매년 교체해야 하는데 따른 과다한 인건비 소요, 물받이 홈통부분에 말아올리기식의 천창환기에 따른 고온기 환기불량 등의 문제점을 안고 있다. 이러한 문제점을 해결하기 위해 폴리에털렌 테레프탈레이트(PET)필름이나 폴리카보네이트(PC)판으로 지붕부분을 피복하고, 측면을 망사혼입 필름이나 PET필름으로 피복하여 매년 피복재를 교체하지않도록 하고 천창환기는 양지붕형 온실의 천창환기방식을 도입하여 하우스내의 환기효율을 높여 토마토의 생육반응을 알아보고자 실험을 실시하였다. (중략)

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1995.10a
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• pp.107-110
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• 1995

우리나라에서 여름철 기상의 특징은 고온다습하면서 년중 강우량의 60-70%가 집중되어 과채류 재배시 효과적으로 강우를 차단할 수 있고, 고온다습을 자연환기로 최대한 억제토록한 성력화된 간이시설이 절실히 요구되고 있다. 여름철의 과다한 강우피해를 극복하고, 강우를 차단한 재배기술이 비가림재배법이며 간이한 시설로 강우를 차단하여 수량과 품질향상을 위한 노력이 80년대 중반부터 급격히 증가하였으나 간이시설내 환경불량을 개선하고자 하는 노력은 전무하다시피 하였다. (중략)

• The Plant Pathology Journal
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• v.21 no.3
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• pp.214-220
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• 2005

Vegetative compatibility groups (VCGs) of Fusarium oxysporum f. sp. radicis-lycopersici isolates collected from tomatoes in Korea were analyzed to determine the genetic characteristics and compared to those of foreign isolates. In comparison of VCG specificity with foreign VCG subgroup testers, Korean isolates were revealed to be VCG 0094 and to be similar to those of Israel and Florida, USA having a 'Universal' property. Results of this study will contribute the effective control of disease through precise estimation of fungal damage, the prediction of new pathogenic isolates appearance, and the movement of foreign pathogens.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1993.10a
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• pp.13-14
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• 1993

우리나라의 '91년도 시설채소 재배면적은 48,855ha로서, 그 중 과채류 재배면적이 27,570ha이고, 기존의 파이프하우스를 이용한 비가림 시설재배 면적은 3,970ha로서 매년 증가하는 추세이다. 극민소득의 증가와 식생활의 고급화로 인해 고품질 과채류의 소비가 급증하고 있으며, 한편 세계 농산물시장의 교역자유화 추세로 인해 채소류의 품질고급화와 생산비 절감을 통한 국제경쟁력제고가 절실히 요청되고 있는 실정이다. (중략)