• Title/Summary/Keyword: capsicum

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Development of Value-Added Chocolate with Korean Red Peppers (Capsicum annuum L.) and Evaluation of Their Physiological Properties (기능성 고추 초콜릿 개발 및 생리활성 특성 분석)

  • Yoo, Kyung-Mi
    • The Korean Journal of Food And Nutrition
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    • v.27 no.4
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    • pp.678-683
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    • 2014
  • This study was conducted to investigate the effect of Korean red pepper extracts on physiological and sensory characteristics. The Korean red pepper extracts were added to chocolate at weight percentages of 0, 2, 4, and 6%. The sensory characteristics made with various Korean red pepper concentrations of the additives were measured as follows: color values (L-value, redness, and yellowness), total phenol, total capsaicinoid, total carotenoid, and ABTS radical scavenging activity. In sensory evaluation, significant differences (p<0.05 and p<0.01) were shown in taste, spiciness, and overall acceptability depending on the addition of pepper extracts. However, there were no significant differences in the properties of aroma and bitterness for chocolate.

CMS-Rf Genotype of Resistance Sources to Gray Leaf Spot in Pepper (Capsicum annuum L.)

  • Kim, Byung-Soo;Kim, Min-Jeong;Lee, Ji-Seon;Kim, Jeong-Hoon;Jun, Su-Kyung
    • The Plant Pathology Journal
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    • v.22 no.2
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    • pp.115-118
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    • 2006
  • A total of 19 selections derived from 4 sources of peppers with resistance to gray leaf spot (KC43, KC47, KC220, and KC319) were tested for their nuclear genotype of the gene conferring the ability to restore the cytoplasmic male sterility. All the selections derived from KC220 and KC319 were maintainers with a genotype of Nrfrf, while all the selections from KC43 and KC47were restorers with a genotype of N(S)RfRf.

Effects of Number of Branches on the Growth and Yield of Sweet Pepper(Capsicum annuum L) in Long Term Bag-hydroponics (단고추의 장기 자루식 양액재배시 분지수가 생육 및 수량에 미치는 영향)

  • 김경제;라상욱;우인식;신동기;문창식;김진한
    • 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)

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Sources of Resistance to Bacterial Wilt Found in Vietnam Collections of Pepper (Capsicum annuum) and Their Nuclear Fertility Restorer Genotypes for Cytoplasmic Male Sterility

  • Tran, Ngoc Hung;Kim, Byung-Soo
    • The Plant Pathology Journal
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    • v.28 no.4
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    • pp.418-422
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    • 2012
  • Eleven hot pepper accessions collected in Vietnam showed stable resistance to bacterial wilt as well-known resistance sources, MC4 and MC5, in repeated inoculation tests with different Ralstonia solanacearum isolates conducted from 2004 to 2010. Seven of these accessions (specifically KC981, KC1006, KC1021, KC1027, KC1045, KC1050, and KC1055) resulted in stable male sterile F1 plants in the crosses with a cytoplasmically male sterile (CMS) Chilseong (CMS-A, Srfrf ), and therefore, they were maintainers (CMS-B) with a genotype of Nrfrf. The rest (KC980, KC995, KC999, and KC1009) produced stable male fertile F1 plants in the crosses, and therefore, were restorers (CMS-C) with a genotype of N(S)RfRf. Therefore, the maintainer and restorer sources of resistance may be used in preference in breeding maternal (CMS and their maintainers) and paternal parents (restorers) for resistance to bacterial wilt, respectively, in the hybrid breeding system utilizing cytoplasmic male sterility.

Bacterial Node Soft Rot of Pepper (Capsicum annuum L.) Caused by Erwinia carotovora subsp. carotovora (Erwinia carotovora subsp. carotovora에 의한 고추 마디 무름병)

  • 정기채;임진우;김승한;임양숙;김종완
    • Korean Journal Plant Pathology
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    • v.14 no.6
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    • pp.741-743
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    • 1998
  • A bacterial disease of pepper (Capsicum annuum L.) that rooted the stem nodes to black was found in pepper plants which cultivated in plastic house at Chungdo, Kyungpook, Korea in March, 1998. Bacterial isolates derived from the diseased peppers were pathogenic to potato, eggplant and Chinese cabbage but, was not pathogenic to chrysanthemum by artificial inoculation. On the basis of bacteriological characteristics and pathogenicity test on host plants, the causal organism of the node soft rot of pepper is identified as Erwinia carotovora subsp. carotovora and the name of disease is proposed as bacterial node soft rot of pepper.

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Expression Patterns of Genes Involved in Carotenoid Biosynthesis in Pepper

  • Ha, Sun-Hwa;Lee, Shin-Woo;Kim, Jong-Guk;Hwang, Young-Soo
    • Journal of Applied Biological Chemistry
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    • v.42 no.2
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    • pp.92-96
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    • 1999
  • To study the regulatory mechanism of isoprenoid (carotenoid) biosynthesis, we have compared the expression patterns of nine isoprenoid biosynthetic genes in Korean red pepper (Capsicum. annuum cv. NocKaung). The expression of geranylgeranyl pyrophosphate synthase gene was initially induced at early ripening stage (I1) and was rather slightly decreased during pepper fruit ripening. The ex-pression of phytoene synthase gene was strongly induced at semi-ripening stage (I2) and the phytoene desaturase transcript was maximally induced at the fully ripened stage (R). Our results suggest that genes encoding two 3-hydroxy-3-methylglutaryl-CoA reductase isozymes (HMGR1 and HMGR2) and farnesyl pyrophosphate synthase might be not so critical in pepper carotenoid biosynthesis but three genes encoding geranylgeranyl pyrophosphate synthase, phytoene synthase and phytoene desaturase were induced in a sequential manner and coordinately regulated during the ripening of pepper fruit.

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Differential Expression of Three Catalase Genes in Hot Pepper (Capsicum annuum L.)

  • Lee, Sang Ho;An, Chung Sun
    • Molecules and Cells
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    • v.20 no.2
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    • pp.247-255
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    • 2005
  • Three different catalase cDNA clones (CaCat1, CaCat2, and CaCat3) were isolated from hot pepper (Capsicum annuum L.), and their expression patterns were analyzed at the levels of mRNA and enzyme activity. Northern hybridization showed that the three catalase genes were differentially expressed in various organs, and that expression of CaCat1 and CaCat2 was regulated differently by the circadian rhythm. In situ hybridization revealed different spatial distributions of CaCat1 and CaCat2 transcripts in leaf and stem. In response to wounding and paraquat treatment, CaCat1 mRNA increased at 4-12 h in both paraquat-treated and systemic leaves. In contrast, wounding had no significant effect on expression of the catalase genes. The increase of catalase activity in the paraquat-treated and systemic leaves paralleled that of CaCat1 mRNA, but did not match that of CaCat1 mRNA in paraquat-treated stems. Our results suggest that CaCat1 may play a role in responses to environmental stresses.