• Journal of the Korean Society of Food Science and Nutrition
• /
• v.30 no.5
• /
• pp.949-953
• /
• 2001

Persimmon has been considered to have a therapeutic value diseases in Korea, Dried, persimmon was applied to a wounded part for an anti-inflammatory and analgesic activities, Anti-coagulating activity has been detected in persimmon by a thrombin-induced clotting assay using human plasma. The anti-coagulating activity was detectible in stem, pulp, core, leaf, and seed of persimmon The stem part of persimmon contains maximal anti-coagulating activity after-size-fractionation. Both of an anticoagulant and its denaturating factor were present in persimmon pulp. The concentration of anti-coagulating activity was determined and compared in different harvesting time, species, and available foods. The level of anti-coagulating activity was highest in persimmon(Fuyu)harvested in November. The anti-coagulating activity was decreased significantly in its processed foods. Persimmon could be expected to be effective in prevention of diseases induced by excess coagulation.

• Food Science and Preservation
• /
• v.9 no.1
• /
• pp.42-45
• /
• 2002

Variations of cyanogenic glucoside was investigated on varieties, picking date, each part and processed flood of Ume. First, variation of amygdalin contents was determined by HPLC during ripening. As a result in case of peels, Oshuku showed most highest content(20.2 mg%) in all varieties. In case of seeds, Native species showed most highest content(562 mg%), and seeds contented more than peels. And then, variation of prunasin contents was determined by HPLC. As a results in case of peels, native species contented most lowest prunasin in all varieties, and its contents slightly decreased with increased storage periods. Other hand, in case of seeds, native species contented most highest prunasin(177 mg%). Contents of amygdalin and prunasin of extracts was determined by HPLC during six month ripening. As a result, in case of freezing storages contents of those not changed hardly during ripening. But, in case of native storage, contents of amygdalin was decreased and prunasin was increased with increased aging periods. Profile of Ume tea was similar to extracts of it.

• The Korean Journal of Pesticide Science
• /
• v.16 no.3
• /
• pp.222-229
• /
• 2012

This study was carried out to evaluate the residual characteristics of azoxystrobin in fresh ginseng and calculate its processing factors in processed products, such as dried ginseng, red ginseng and their extracts. Azoxystrobin was sprayed annually onto four-year-old ginseng according to its pre-harvest interval (PHI) for two years. Harvested ginsengs were processed according to the commercially well-qualified conventional methods provided by the Korea Ginseng Corporation. Limits of detection (LODs) of azoxystrobin in fresh ginseng and its processed products were 0.001 and 0.002 mg/kg, respectively. Also limits of quantitation (LOQs) in fresh ginseng and its processed products were 0.003 and 0.007 mg/kg, respectively. Recoveries of the analytical methods in fresh ginseng and its processed products ranged from 69.3 to 114.8%. Highest residue amounts in fresh ginseng and its processed products were 0.025 and 0.118 mg/kg, respectively. Processing factors of the processed products ranged from 1.85 to 3.17 in four-year-old ginseng and from 2.48 to 5.84 five-year-old ginseng.

• Korean Journal of Food Science and Technology
• /
• v.48 no.4
• /
• pp.317-322
• /
• 2016

A pesticide mix solution containing difenoconazole, lambda-cyhalothrin, and lufenuron was applied 3 times on field grown chili pepper at a fivefold overdose dilution concentration of the spray solution at a pre-harvest interval of 7 day. Difenoconazole, lambda-cyhalothrin, and lufenuron were detected at 4.43, 0.334, and 1.56 mg/kg, respectively, in raw chili pepper. Washing with water reduced the residue levels to 91.4, 94.3, and 85.3%, respectively. In dried chili pepper, the residues of difenoconazole, lambda-cyhalothrin, and lufenuron were 22.2 mg/kg (processing factor, Pf =5.01), 1.65 mg/kg (Pf =4.94), and 6.54 mg/kg (Pf =4.19). In the seeds, difenoconazole and lambda-cyhalothrin were not detected, and lufenuron was detected at 0.0075 mg/kg (n=1) and <0.005 mg/kg (n=2). Thus the pesticide residues in the seeds was negligible. In the seed oil, difenoconazole and lufenuron residues were 0.0263 and 0.0295 mg/kg, respectively (concentration factors=5.26 and 4.72). These concentration factors supported the theoretical concentration factor of 6.8, assuming that all of compound present in the seed are transferred into the oil.

• Research in Plant Disease
• /
• v.18 no.4
• /
• pp.399-401
• /
• 2012

In order to select the optimum rice cultivars for the use in processing of eco-friendly-grown germinated brown rice (GBR), disease incidences and yields in rice cultivars bred in National Institute of Crop Science were investigated in eco-friendly paddy fields (Gokseong, Jeonnam Province, Korea) during the years 2009-2011. The incidences of rice sheath blight and blast on the cultivar Samgwang were higher than those on one reference cultivar Chucheong, but much lower than those on the other reference cultivar Gosihikkali. The cultivars Keunnun and Haiami selected as special rices showed disease incidences and yields similar to the reference rice cultivars Chucheong and Gosihikkali. These results indicated that the cultivars Samkwang, Keunnun, and Haiami can be selected as rice cultivars for the use of in processing of eco-friendly grown GBR because their disease incidences and yields in Gokseong may be similar to the reference cultivars.

• Food Science and Industry
• /
• v.46 no.2
• /
• pp.58-64
• /
• 2013

본 연구는 식품의 이온화 조사 처리기술로 얻을 수 있는 경제적 이득을 정량적으로 보여줄 수 있는 자료를 마련하기 위한 것이다. 이온화 조사가 허용되었거나 앞으로 허용 가능한 농산물의 수확 후 관리 손실 비용을 분석하고, 가공식품의 저장성 향상에 의한 경제적 이득에 대하여 조사하였으며, 식품의 이온화 조사로 예방 할 수 있는 식중독 사고의 정도와 그 사회 경제적 비용절감을 추산하였다. 신선식품의 연간 수확 후 손실 비용은 감자, 마늘, 양파, 고추에 대해 총 1조 1,251억 원으로 추산되었다. 현재 이온화 조사가 허가된 품목(다류, 장류, 조미식품, 드레싱)의 유통기한 초과로 인한 폐기 손실액은 899억 원으로 조사되었다. 현재 이온화 조사가 허용되지는 않았으나 향후 조사품목을 확대하였을 때 포함될 수 있는 품목(식육과 알 가공품, 어육가공품, 건포류, 축산가공품)의 유통기한 초과에 의한 폐기손실액은 총 1,931억 원으로 조사되었다. 식품의 이온화 조사로 예방 가능한 식중독의 보건 사회적 비용을 추산한 결과 이온화 조사로 사멸효과가 큰 E. coli O157, Campylobacter jejuni, Salmonella spp.에 의한 식중독 감소 효과로 연간 880억 원의 보건 사회적 비용 감소효과를 가져올 것으로 보여지며, 전체 세균성 식중독으로 확대하여 분석 한 결과 1,790억 원의 비용 감소효과를 가져올 것으로 추산되었다. 이온화 조사 처리기술은 식중독 예방에 의한 보건의료비의 절감 기능과 아울러 식품산업의 유통손실 절감과 식량 유실을 막는 효과적인 방법이므로 식량안보적 차원에서 적극 활용되어야 할 것으로 판단된다.

• Journal of Bio-Environment Control
• /
• v.31 no.4
• /
• pp.393-400
• /
• 2022

Postharvest quality of sweet pepper fruits was mainly defined as external appearance, i.e., shape, fruit weight and surface color. These quality traits tend to involve esthetic appeal, it disregards gustatory properties and nutritional value. However, comparative studies according to the marketability of sweet pepper fruits are insufficient. This study was carried out to compare the physicochemical components, antioxidant activity and carotenoid contents of marketable and unmarketable sweet pepper fruits (Capsicum annuum L.). Physicochemical components (proximate composition, minerals and total phenolic contents) and antioxidant activities using various methods were investigated. The proximate composition values (%) of marketable and unmarketable fruits were: moisture (90.28 and 90.29), ash (0.74 and 0.26), crude protein (0.67 and 0.72), crude lipid (0.38 and 0.32). There were no significant differences in antioxidant activity, while total phenolic content was higher in marketable fruit. Carotenoids contents were 29.3 ± 2.6 and 31.9 ± 2.9 ㎍·g^-1 in marketable and unmarketable fruits respectively, and identified β-carotene, violaxanthin, neoxanthin, and zeaxanthin. Lutein and capsaicin were not detected. In this study, potential value of unmarketable sweet pepper fruit could be identified to be applied as a food ingredient and functional food material.

• Korean Journal of Food Science and Technology
• /
• v.43 no.3
• /
• pp.263-270
• /
• 2011

This study was performed to acquire processing and reducing factors of difenoconazole during ginseng processing, and to establish the maximum residue limits of ginseng and its commodities. Difenoconazole was used in two fields (Wonju and Icheon) containing 6 year old ginseng plants. The amount of residue at Wonju and Icheon were

• Korean Journal of Breeding Science
• /
• v.51 no.4
• /
• pp.496-503
• /
• 2019

The soybean cultivar, 'Saegeum', has been developed for preparing soy-paste and tofu. The soybean cultivars 'Daepung' and 'SS98207-3SSD-168' were crossed in 2003 to obtain 'Saegeum'. Single seed descent method was used to advance the generation from F₃ to F₅, and the plant lines with promising traits were selected from F₆ to F₇ by pedigree method. The preliminary yield (PYT) and advanced yield trials (AYT) were conducted from 2009 to 2010, and the regional yield trial (RYT) was conducted in 12 regions between 2011 and 2013. The morphological characteristics of 'Saegeum' were as follows: determinate plant type, white flower, tawny pubescence color, and brown pod color. Flowering and maturity dates were August 2, XXXX and October 17, XXXX, respectively. Plant height, first pod height, number of nodes, number of branches, and number of pods were 79 cm, 18 cm, 16, 2.3, and 44, respectively. The seed characteristics of 'Saegeum' were as follows: yellow spherical shape, yellow hilum, and the 100-seed weight was 25.4 g. 'Saegeum' was resistant to bacterial pustule and SMV in the field test, and its lodging resistance was mildly strong, whereas its shattering resistance was excellent. The ability of this cultivar to be processed into tofu, soybean malt, and other fermented products was comparable with that of 'Daewonkong'. The yield of 'Saegeum' in the adaptable regions was 3.02 ton ha^-1. Thus, 'Saegeum' is adaptable to mechanized harvesting because of its high first pod height, as well as lodging and shattering resistance. (Registration number: 5929)

• Proceedings of the Korean Society for Agricultural Machinery Conference
• /
• 2017.04a
• /
• pp.102-102
• /
• 2017

제주산 감귤생산량은 51만톤(2016년)으로 수확기에 장마 등과 같은 환경적 요인에 의해 결점과의 비율이 24.9% 정도이다. 결점과로 통칭되는 비상품과는 일부 대기업의 쥬스공장에서 수매하는 량을 제외한 대부분은 자체 농장에서 폐기처분되고 있어 많은 감귤 비상품과 처리에 많은 문제점이 노출되어 오고있다. 성주군에서는 결점과 및 비상품과가 시장에 출하되는 것을 방지하기 위하여 자체 수매하여 액비, 발효퇴비, 사료화 가공 등에 많은 비용을 투자하고 있다. 따라서 본 연구는 당도가 15 Brix에 달하는 고당도 감귤 및 참외의 비상품과를 효과적으로 착즙하여 감귤 착즙액은 생산농자재로 환원하고, 참외 착즙액은 참외조청용 원료로 사용하는 기술을 개발하고자 한다. 착즙장치는 PLATE형 스크류, 테퍼 스크류 하우징, 파쇄된 과즙을 마지막 단계인 압입하는 고깔부 및 동력을 공급하는 구동부로 구성하였다. 개발한 고액분리 착즙장치의 외형은 $W1,000{\times}L2,000{\times}H1,070$이고 사용동력은 0,75kw, 1/30 감속모터를 사용하였다. 일반적인 착즙장치는 1단 분쇄와 동일 원통형의 스크류 압착으로 고액분리를 위한 착즙이 이루어지기 때문에 처리량이 150kg/hr에 불과하지만 개발한 고액분리장치는 2차 분쇄와 원통형과 원추형의 스크류 압착 후 고액분리망을 통과하도록 하여 500kg/hr 이상을 착즙이 가능하도록 개발하였다. 따라서 농산물의 고액분리를 통한 농산물의 가공을 위한 연속 착즙 장치는 2단 분쇄와 원통형 및 원추형 압착 미세망을 이용한 고액분리 착즙기는 기존 착즙기에 비하여 처리량이 3배 이상 증가되었다는 것을 알 수 있었다. 기존 감귤 착즙기의 수율은 60%정도이나 개발 착즙기의 착즙 수율은 66.5%로 나타나 본 연구에서 개발한 착즙기의 수율이 기존 착즙기의 수율보다 약간 높게 나타났다. 기존 착즙기는 원료(농산물의 종류)의 종류나 전처리에 제한이 있어 전용으로 사용하는데 비해 본 연구에서 개발한 고액분리 착즙기는 원료의 종류나 전처리 상태에 관계없이 사용 가능함을 확인하였다.