• Korean journal of applied entomology
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• v.28 no.2
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• pp.88-92
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• 1989

The Oriental tobacco budworm, Heliothis assulta (Guenee), larvae usually feed on the hot-pepper fruits and young tobacco leaves or buds in Korea. This experiment was conducted t(} compare their attraction to their host plants including fruits of the sweet-pepper and solanum uk kwang, besides the other two mentioned above. First instar larvae were most attracted to the hot-pepper fruits. Flowers or leaves of the hot pepper plants were not attractive either. When the hot-pepper fruits were compared for attractancy, based on developmental stages, relatively mature fruits, just before ripening, were the most attractive. Their extract with or without 10% ethanol also gave similar result to 1st instar larvae or 2~4 instar larvae, suggesting a possibility that there is an attractant(s) in the hot-pepper fruits.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2004.05a
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• pp.61-78
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• 2004

상품화 목적 : 순창지역에서 생산되는 농산물을 이용한 2차가공 식품 개발을 통한 농특작물 생산 활성화, 기호성과 기능성이 다량 함유되어있는 천연과실을 이용한 순창전통고추장 품질향상, 수요의 한계상황극복 : 현 시점이 고추장 판매의 정점에 있다고 봄. 새로운 판매 및 수요층 확보. 식문화의 변화가 심각 : 장류의 새로운 변화모색 (중략)

• Journal of the Korean Society of Food Science and Nutrition
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• v.15 no.2
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• pp.171-175
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• 1986

Pectic substance of hot pepper crude cell wall was fractionated during ripening and softening. The pectic substance was divided ionically associated pectin(IAP) and covalently bounded pectin with hemicellulose(CBP). And then, the composition and the modification of the pectic substance using gel filtration chromatography were studied. The polyuronide associated with the CBP increased owing to decreasing of pectin bound hemicellulose linked to galactose by the turning stage showed softening. The molecular weight profiles of IAP shifted from low molecular weight profiles of IAP shifted from low molecular weight to high molecular weight polymers. While, the CBP changed from high molecular weight to low molecular weight polymers during ripening. It is suggested that the changes in the pectic substance associated with fruit softening should involve the alteration of CBP-bound hemicellulose like galactan.

• Journal of the Korean Society of Food Science and Nutrition
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• v.29 no.4
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• pp.575-581
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• 2000

Quality characteristics of kochujang prepared with appleand persimmon were investigated during 14 weeks of fermentation. The water activity decreased slightly during fermentation and was higher in kochujang (I) prepared with apple than in kochujang (II) prepared with presimmon. The reducing sugar contents increased from 10.95% in kochujang (I) and 10.30% in kochujang (II) to 16.68, 19.14% after 10 weeks of fermentation, respectively. The free sugar contents in kochujang (I) were maltose 10.55, glucose 8.47 and fructose, 3.02% after 12 weeks of fermentation. The free sugar content in kochujang (II) were maltose 10.55, glucose 21.65, glucose 8.71 and fructose 2.98 after 6 weeks of fermentation. The major free sugar in kochujang (I) and (II) was maltose. The organic acids detected in kochujangs were citric, malic, lactic and oxalic acids. The contents of citric acid and malic acid were higher than other acids in both kochujangs. The contents of total free amino acids were 187.59~420.94 mg% in kochujang (I) and 154.67~316.93 mg% in kochujang (II). The contents of aspartic acid, proline and glutamic acid were high in kochujang (I) and (II).

• Korean journal of applied entomology
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• v.43 no.1
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• pp.49-54
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• 2004

The oriental tobacco budworm, Helicoverpa assulta (Guenee) is a major pest of red pepper in Korea. Insecticide spray is a prevalent control tactic in most farms, but an effective control is difficult because the larvae are protected inside the fruit. Objective of this study was to investigate the seasonal occurrence of the male moths using pheromone trap and to evaluate the control efficacy of insecticide applications based on the trap catch data at red pepper fields in Suwon. The results of pheromone trap catch during three years showed that the moth flight activity occurred from late May to early October. Peak periods of the adult flight, which are indicators of each generation, occurred in late June, late July-early August, and late August-early September. Trap catches during the overwintering and first adult generation were closely linked with subsequent damage. Although the trap catch during the second generation was higher than the previous generations, damage level caused by this generation larvae was low. Experiment results revealed that fruit damage by H. assulta could be effectively reduced by five sprays of insecticides based on the trap catch data throughout the season.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.05a
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• pp.36-39
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• 1997

단고추(Capsicum annum)는 중앙아메리카와 남아메리카의 열대지방이 원산지로 알려져 있고 매운맛이 없으며 미숙과를 주로 샐러드용으로 이용하는 원추형 과실을 착생하는 품종군으로 일반고추재배와는 달리 반드시 정지 및 유인을 해야만 좋은 과실을 생산할 수 있으며, 유인 및 관리정도에 따라 품질의 차이가 커 이것이 가격에 영향을 미쳐 농가의 소득과 직결되여 있다. 정지와 유인은 보통재배의 경우 U자형과 V자형으로 하고 있으나 노동력이 많이 소요된다. (중략)

• Korean Journal of Plant Tissue Culture
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• v.28 no.5
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• pp.249-254
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• 2001

Effects of ultraviolet stress and elicitors, cellulase and jasmonic acid (JA), for the production of capsidiol, sesquiterpenoid phytoalexin, in seedlings and suspension cultures of pepper (Capsicum annum L. cv, Soobicho) were examined. Extracellular capsidiol in the medium of suspension cultures was absent from control cells, but accumulated in the elicitor treated cells with 0.05 $\mu\textrm{g}$/mL of cellulase or 0.1 $\mu\textrm{g}$/mL JA. Elicited cells gradually decreased their viability and eventually died within 48 hours of elicitor treatment by the toxicity of capsidiol accumulated in the culture medium. Capsidiol production in the leaves of pepper seedlings was markedly increased by the treatment of ultraviolet stress and reached maximum level at 48 hours of irradiation. Infiltration of elicitors, 0.05 $\mu\textrm{g}$/mL cellulase or 1.0 $\mu\textrm{g}$/mL JA, to the surface of leaf or fruit, stimulated the elicitation of the cells which resulted in the production of capsidiol and expansion of pathogene-like lesion around the elicitor treated region.

• Journal of the Korean Society of Food Science and Nutrition
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• v.15 no.2
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• pp.165-170
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• 1986

Various cell wall polysaccharides such as IAP(ionically associated pectin), CBP(covalently bounded pectin), HF(hemicellulosic fraction) and CF(cellulosic fraction) were fractionated by chemical method from hot pepper fruit cell wall during ripening and softening. And then, the composition of the polysaccharides were determined. The IAP and CBP were composed of $65{\sim}88%$ polyuronide, $4{\sim}29%$ hemicellulose and $0.3{\sim}2.1%$ cellulose. And hemicellulose also contained $8{\sim}13%$ polyuronide and $0.1{\sim}1.1%$ cellulose. The containing ratio of hemicellulose associated with the CBP was higher than IAP. All of the polysaccharides except CF decreased by the turning stage showed softening. The polyuronide made up IAP changed little but, that of the CBP increased during softening owing mainly to decrease of the hemicellulose that was bounded to the CBP and was mostly linked to galactose.

• Journal of Bio-Environment Control
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• v.15 no.2
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• pp.177-183
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• 2006

The summer production of sweet pepper in Korea which cultured in the highland area such as Hapchon is essential for a year-round export, but has the problem, fruits lose easily those marketability. This study was carried out to find changes of fruit quality in response to storage on sweet pepper cultivars in summer. Seven cultivars of sweet peppers, 'Jubilee', 'Plenty', 'Goal', 'Romeca', 'Derby', 'Midas' and 'Maximalia' were obtained iron growers in Hapchon which was highland of 600-800m from sea level and stored at $10^{\circ}C$ with box packing. Fruit quality was evaluated every 4days up to 4weeks. The weight loss of 'Jubilee' was the lowest, that of 'Romeca' was the highest. The firmness of 'Goal' was maintained highly for 4weeks and the red cultivars was higher than those of other color cultivars. The lightness of 'Jubilee' was sensitively affected by storage duration. Seeds of 'Plenty' and 'Derby' were plentifully browned after 4weeks storage. The occurrence of fruit rotting was after 16-204ay storage and those of 'Plenty' and 'Maximalia' were the earliest. The marketability of 'Jubilee' and 'Romeca' maintained by 70% for 16 days was the highest, but most cultivars lost those by 20% after 24days storage. It may be suggested that the marketability of sweet pepper producted in summer can be stored at $10^{\circ}C$ for 2weeks to maintain that of 80%.

• Research in Plant Disease
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• v.8 no.2
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• pp.120-123
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• 2002

Occurrence of anthracnose on red pepper fruit was examined at 6 red pepper-growing regions including Yecheon, Andong, Euisong, Cheongsong, and Ponghwa in Kyungbuk province, Korea in 1999. The disease occurred firstly June 13 at Cheongsong, progressed gradually thereafteri and increased rapidly from late August. The average disease incidence with mid September was 30.4%. There was no significant difference in disease incidence among the regions examined. Correlation coefficient analysis of the disease incidence with weather factors revealed that it was significantly related to relative humidity, precipitation, rainy days, and duration of continuous rainy days. Most fungal isolates from the diseased fruit were Colletotichum gloeosporioides. In the in field experiment, unmature fruit was somewhat more susceptible to the disease than mature fruit. In the field experiment, the disease occurred severely in open fields, having the disease incidence of 12.1%; however, no disease was observed in the rain-proof fields. The anthracnose on red pepper fruit developed earlier and more severely in the successive cropping field with red pepper than the field having other crops. Removal of infected plant debris also delayed and reduced the disease occurrence, suggesting that plant debris infested with the anthracnose fungus serve as a primary inoculum source which may govern the severity of the disease in the field.