• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.90-90
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• 2018

고사리(Ferns)는 고사리 속(Pteiidium spp.)에 속하는 양치식물의 총칭으로서 우리나라에는 22과 70속 272종이 분포되어 있는 것으로 보고되었다. 고사리의 어린 순에는 가식부 100g 당 칼슘 15.0mg, 칼륨 185.0mg 등이 함유되어 있으며 골다공증, 심혈관질환 등에 효과가 있고 식이섬유로 인해 변비 예방에도 유용한 것으로 알려져 있다. 2017년 기준 우리나라의 고사리 재배면적은 3,280ha 수준으로 그중 전라북도의 고사리 재배는 재배면적 285ha이며 연간 생산량 1,985톤으로 전국 생산량의 21%를 차지하고 있어 전라북도의 산채 재배작목 중 중요한 비중을 차지하고 있다. 고사리 재배는 정식 후 수확기간이 길고 제초노력 등의 노동력 의존도가 상대적으로 낮아 최근 재배면적이 늘어나고 있는 추세이나, 종근의 적정 규격 등에 대한 기준이 제시되지 않아 경영비 부담이 큰 실정이다. 본 연구는 고사리 종근 규격을 종근 두께 기준 A등급($14.1{\pm}3.31mm$), B등급($8.3{\pm}1.88mm$), C등급($3.3{\pm}2.31mm$)로 구분하여 표고 500m의 허브시험장 연구포장에 3월 28일 정식한 후 2018년 4월부터 신초 출현양상 및 수량성을 조사하였다. 파종 2년차 고사리 신초의 출현양상은 4월 11일부터 출현을 시작하여 6월 11일 까지 빠르게 증가하여 7월 9일 이후 고온기이후 증가세가 완만해지는 경향을 보였고 9월 10일까지 누적 신초수는 A 등급 파종구에서 80.0개를 보였다. 신초 출현 후 포자엽이 전개되어 상품성을 상실하기까지의 포자엽 전개일수는 주 수확시기인 4~5월에는 5.3~6.7일이 소요되었으나, 포자엽 전개이후 울폐가 이루어지는 8~9월에는 9.7~11.7일이 소요되어 생육 초기 차광에 의한 전개일수 연장효과가 기대되었다. 생육기간 동안 조사시기별 신초의 두께는 6월 11일과 9월 11일 조사한 신초에서 굵어지는 경향을 보였고, 상품성 있는 고사리 신초의 규격을 신초장 20cm로 포자엽 전개 직전으로 한정하여 수확을 실시한 결과 파종 2년차 수확은 4월18일 이후 4회 이루어졌으며 신초의 생체중은 5.2~6.0g/개의 범위로 종근 규격 간에는 차이가 인정 되지 않았다. 4월 18일에서 5월 8일까지의 수확기간 동안 누적 신초 수확량은 A 등급과 B 등급의 종근을 파종한 처리에서 각 32.2개/$m^2$, 30.3개/$m^2$로 C 등급 파종구에 비해 유의하게 수확 신초수가 증가하였다. 단위면적당 신초 수량성은 4월 30일 3회차 수확시부터 종근 규격간 차이가 있었으며 누적 신초수량은 A 등급과 B 등급 파종구에서 각 183.3kg/10a, 169.9kg/10a로 유의하게 높았는데 이는 파종된 종근의 두께에 따라 상품성 있는 신초 출현수가 유의하게 증가된 때문으로 판단되었다.

• The Korean Journal of Mycology
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• v.31 no.3
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• pp.192-199
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• 2003

This study was carried out to investigate the artificial cultivation of Pleurotus eryngii on the optimal medium vessel, periods of cultivation and the optimal method of pinheading for both yield and quality of fruiting body were also performed. The optimal composition of sawdust medium in polypropylene(PP) bottle was combination of sawdust(70%) and corncob(30%) but increased amount of corncob delayed the period of mycelial growth. The mycelial growth and the yield of fruiting body in the medium with beat pulp were worse than that without beat pulp. The optimal composition of nutrients for both yield and quality of fruit body tuned out to be a combination of rice bran(12%), wheat bran(12%) and cottonseed cake(6%). Additions of zeolite, shell lime and bean curd dregs were not effective in mycelial growth and yield of fruit body. When testing size of PP bottle for cultivation, the larger of bottle mouth is, the more pinheading number found, but the number of available fruit body is not significantly different. The culture in $1100\;ml-{\phi}75\;mm$ bottle is the best in the yield and quality of fruit body than those in $555\;ml-{\phi}50\;mm,\;850\;ml-{\phi}58\;mm,\;850\;ml-{\phi}65\;mm\;and\;1100\;ml-{\phi}65\;mm$ bottle. Using the PP bag for cultivation, a square shaped bag was better than a round shaped and black square shaped in mycelial growth and yield of fruit body. The most suitable period of incubation was 35 days after inoculation at $22{\pm}2^{\circ}C$. When the incubation periods was decreased less than 35 days, the pileus formation and yields were very bad but a pinheading condition looked similar, For an optimal pinheading, turning upside down was better than standing and covering.

• Food Science and Preservation
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• v.20 no.3
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• pp.304-316
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• 2013

To determine the appropriate harvest maturity of mulberry to prolong the freshness during distribution, mulberries were classified into three groups (80%, 90%, and 100%) based on their degree of maturity and then compared for their firmness, color, anthocyanin, soluble solids content, pH, titratable acidity, viable cell, mold and sensory quality. They were then investigated for quality changes by maturity under different distribution temperature at $20^{\circ}C$, $10^{\circ}C$ and $0^{\circ}C$. Immediately after harvest, the 80% matured mulberries were shown to be the firmest and 1.74 and 2.64 times firmer than 90% and 100% matured mulberries respectively. The more mature the mulberries were the lower the "a" value was while anthocyanin content was higher. The soluble solids content and pH of mulberries increased as they matured. Less mature the mulberries were the higher titratable acidity was and lower microbial levels in mulberries were. In terms of sensory quality, color of the 100% matured mulberries was the highest but the 90% matured mulberries were most preferred based on other sensory indexes. In comparison to storability of mulberries by maturity, although the firmness of the 80% matured mulberry decreased rapidly, they were the firmest during distribution periods. The level of mold of the 100% matured mulberries was higher than others. Moreover, the more mature mulberries were the quicker they deteriorated. According to quality indexes, depending on maturity and sensory evaluation of mulberry distributed at different temperatures, the storability of the 80 and 90% matured mulberries were higher than that of the 100% matured mulberries. In conclusion, judging by their sensory quality, the 90% matured mulberries were more appropriate for harvesting than the 80% matured mulberries.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2021.04a
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• pp.43-43
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• 2021

로즈마리(Rosmarinus officinalis)는 지중해 지역이 원산이고 꿀풀과에 속하는 다년생 식물로 자생지에서는 식물의 크기가 2m까지 자라는 관목성 식물이다. 식용, 약용, 미용, 향료뿐 아니라 관상용으로도 널리 이용되고 있고 특히 향이 좋아 세계 로즈마리 추출물 시장은 연평균 4.8%씩 증가하여 2027년에는 10억 달러를 넘을 것으로 예측된다. 우리나라도 소비 트렌드 변화에 따른 이용성 확대로 신선허브의 수요가 증가하고 있으나 아직은 허브 식물원료의 대부분을 수입에 의존하고 있고, 로즈마리 역시 식물원료뿐 아니라 가공품까지 외국에서 수입하여 사용하는 실정이다. 2018년 로즈마리 수입량은 신선상태 978kg, 건조상태 23,404kg으로 높은 수입의존에 따른 가격 상승과 긴 유통기간에 의한 품질 저하 등의 문제가 발생하고 있다. 본 연구는 로즈마리 어린 순 재배 적정 삽수 길이를 설정하고 어린 순 생산 가능 기간을 구명하여 추후에 고품질 로즈마리 어린 순 집약생산을 위한 다단재배기술을 확립하고자 수행되었다. 삽수 길이는 5, 10, 15cm로 하였고, 삽목 시기는 4월 하순 ~ 8월 하순까지 30일 간격으로 5회 실시하였다. 적정 삽수 길이 설정 실험에서는 15cm 삽수 발근률이 85.6%로 가장 높았으며 신초 출현시기는 5월 26일, 어린 순 생산시기는 6월 23일로 가장 빨랐고 수확시까지 소요일수는 56일로 가장 짧았다. 기대수량 또한 728g/m²로 가장 높았다. 로즈마리 어린 순 생산 가능 기간 구명 실험에서는 4월 28일 삽목시 발근율이 85.6%로 가장 높았고 육묘기간은 28일 어린 순 생산까지 소요일수는 56일로 가장 짧았다. 삽목 시기별 어린 순 품질 및 생산량은 4월 28일 삽목시 품질이 좋았으며 기대수량 또한 728g/m²로 가장 높았다. 결과적으로 상품성 있는 어린순 생산에 적합한 삽수 길이는 15cm, 삽목 시기는 4월 하순 경에 했을 때, 로즈마리의 생육상태, 수확까지의 기간, 어린 순 생산량 등 종합적인 면에서 가장 우수한 값을 얻을 수 있었다.

• Food Science and Preservation
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• v.9 no.4
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• pp.357-361
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• 2002

This study was carried out to understand the problems, and find out the solution of post - Harvest related procedures for barley in Korea. Consecutive post - harvest procedures in harvesting, drying, milling, packaging and marketing methods were collaborately surveyed at Bujeok (Chungchongnamdo) and Kunsuh (Cholanamdo) agricultural cooperative federation where Chalssalbori (waxy barley) and Ssalbori (non waxy barley) were collectively cultivated in a group farming area, respectively. An early harvesting and relatively short harvesting period within 15 to 20 days to transplanting rice plants as a succeeding crop lead to produce undergrade barley and 2 to 3％ harvesting loss were considered as the problem that should be improved. In drying of barley, wide moisture content range of harvested barley among the different farmers and cultivation land was made difficult barley drying unifomly when they were dried in same dryer and drying temperature was slightely higher with 50 to 70$\^{C}$ than that of optimum temperature (under 50$\^{C}$) fer barley drying for producing the high quality barley. Dried barley packaged in ton-bag or 3P bag and put into the rectangular grain bin were stored in ambient temperature warehouse and milled for marketing through whole you. The physico-chemical properties and taste of stored barley were fairly maintained until May next year.

• Horticultural Science & Technology
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• v.17 no.3
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• pp.341-343
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• 1999

Quality of 'Niitaka' pear fruit was evaluated by instrumental and sensory analysis in relation to storability. Fruits harvested at commercial maturity were stored in a common storage room or in a cold storage at $2^{\circ}C$. During storage, fruits were sorted by instrumental measurement of soluble solid content (SSC) and flesh firmness. Then, overall acceptability was evaluated by organoleptic test. Critical storage period was determined by sensory evaluation index for different storage methods. After 60 days of storage, eating quality was acceptable when flesh firmness was higher than $3.3kg/8mm{\emptyset}$. As for soluble solid contents, high eating quality was obtained when pear fruit contained soluble solids higher than $13.0^oBrix$. In 'Niitaka' pears, however, changes in soluble solid content seemed not to be an appropriate parameter to determine storability since SSC increased during both common and cold storage. Data of organoleptic test and postharvest changes in flesh firmness suggested that storability of 'Niitaka' pear fruit seemed to be 30 days in a common storage and 120 days in a refrigerated storage.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.37 no.4
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• pp.347-354
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• 1992

Late harvest in peanut has often resulted in reduced yield and dissipation of labor by virtue of increasing over-matured pods causing the pod shattering. Present study was conducted to obtain a basic information for deciding optimum harvest time of the peanut in Chungbuk province by examination of yield components at different harvest time of leading cultivars Saedl and Youngho cultivated with vinyl mulching or non-mulching conditions. Peg number and pod number were significantly increased by vinyl mulching and also significantly different by the harvest time. Pod number increased with the lapse of days after flowering was gradually decreased from 100 days after flowering in saedl and 110 days in Youngho. Number of seed-bearing pods and matured seed percent were significantly increased by vinyl mulching and had tendency to increase with the lapse of days after flowering. There was no significant difference in number of over-matured pods and pod shattering percent between vinyl mulching and non-mulching. They increased drastically in 110 days after flowering in Saedl, but in 120 days after flowering in Youngho, Increase in 100 seed weight by vinyl mulching was statistically nonsignificant in both varieties, however, total seed yield was significantly increased by vinyl mulching, showing maximum yield in 100 days after flowering in the variety Saedl and 110 days in Youngho, respectively, Seed yield was negatively correlated to peg number and positively correlated to pod number, seed-bearing pod number, pod shattering percent, matured seed percent and 100 seed weight, respectively.

• Horticultural Science & Technology
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• v.31 no.3
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• pp.289-298
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• 2013

Effects of curing treatments and storage temperature on the quality of Chinese yams (Dioscorea polystachya Turcz.) were investigated stepwise in three consecutive years for the optimization of postharvest handling procedures. Tuberous roots were harvested in early to mid November and cured under ambient or $29^{\circ}C$ heated air conditions for various periods according to the treatment conditions. Storage temperatures in the range of 0.5 to $7.5^{\circ}C$ were phased in to avoid chilling injury while examining storage potential from 4 to 7 months. As poststorage technology, short-term $60^{\circ}C$ hot-air exposure or low shelf temperature treatments were additively imposed. Curing treatments, especially heated air curing for 3-5 days tended to reduce the respiration and weight loss during storage while maintaining flesh firmness. Storage at $0.5^{\circ}C$ brought out typical chilling injury symptoms on the shelf with increases in respiration and lower flesh firmness by tissue breakdown resulting in the rapid loss of marketability. Optimum storage temperature appeared to be the $3-4^{\circ}C$ range which suppresses quality deterioration while avoiding chilling injury. Low shelf temperature seemed to be a necessary part of postharvest handling system to keep marketability through control of poststorage disorders such as rooting and decay. Overall results suggested that optimized postharvest program consisting of heated-air curing, storage at $3-4^{\circ}C$, and low shelf temperature could extend storage potential of Chinese yam to longer than 7 months.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.29 no.1
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• pp.35-41
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• 2023

The purpose of this study was to examine the effect of each storage temperature condition of 5, 10, 15 and 20℃ to maintain the freshness of mini paprika (Capsicum annuum cv. New Raon Red) in corrugated box. Changes in general appearance, fresh weight loss, firmness, SSC (solid sugar content), and Hue angle were investigated. Furthermore, storage at temperatures ranging from 5℃ to 15℃ for 14 days resulted in maintaining freshness for 35 days. Paprika stored at 20℃ showed significantly higher loss of fresh weight and firmness than that of other storage temperatures. Furthermore, paprika stored at 5℃ and 10℃ showed a lesser decrease in hue angle than that at 15℃ and 20℃. However, the SSC of mini paprika was not significantly affected by storage temperature. These results suggest that corrugated box packaging in combination with low storage temperatures (5~10℃) could be effective in prolonging the shelf life of mini paprika. Therefore, the results represented that the low temperature storage in combination with cardboard box treatment could be effective in prolonging the shelf life of fresh paprika.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2020.12a
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• pp.71-71
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• 2020

산채는 사람에 의하여 개량 육성되어 논밭에서 재배하고 있는 농작물과 달리 자연 그대로 산야에서 자생하는 식물 중 식용으로 가능한 것을 말한다. 산채류의 이용형태별 생산가능시기는 3~5월의 생채 생산과 6~7월의 건채 생산으로 소비자의 기호에 부합하는 신선 생채의 소비한계는 제한되어 있기 때문에 재배유형별 생채 수량검정을 통해 수확시기 연장 및 재배품목을 다양화 시킬 필요 있다. 따라서 본 시험은 재배가능한 산채류를 수집하고 기능성 분류를 통한 꾸러미 산채 조합을 구성하였고 조합된 산채류 들에 대한 생산성 검정을 위해 해발 500m의 전라북도 농업기술원 허브산채시험장에서 2018년 5월 말 갯기름나물 등 15 종을 정식하여 각 작물의 생육특성, 수확한계기 등을 조사하였다. 기능성 분류 결과 항당뇨, 항고지혈증, 항비만, 항혈전, 항염증 총 5가지 조합을 구성하였다. 산채류별 광합성특성 조사결과 돌단풍, 개미취, 섬쑥부쟁이, 질경이, 갯기름나물, 참취의 적정광량은 600~800 μmole/m²/s이였고 눈개승마, 어수리, 참당귀는 400~500 μmole/m²/s, 곤달비, 곰취, 단풍취는 200~300 μmole/m²/s이였다. 기능성 꾸러미 산채류 지상부 생육특성 결과 갯기름나물, 질경이, 참취, 곤달비 섬쑥부쟁이 등이 생육이 우수하였다. 수량성은 섬쑥부쟁이 1,694.6kg/10a로 가장 높았으며, 갯기름나물 1,673.4kg/10a, 참취 1,521.3kg/10a, 질경이 1,398.3kg/10a, 곤달비 1,300.6kg/10a 등이 높았다. 반면 돌단풍 111.8kg/10a, 단풍취 69.5kg/10a, 우산나물 25.4kg/10a로 아주 낮은 수량성을 보였다. 산채류 출현기는 산마늘이 2월 7일로 가장 빨랐으며 대부분 산채류들이 2월 11일에서 2월 25일에 출현하였고 단풍취, 우산나물이 3월 6일로 늦은 출현기를 보였다. 기능성 꾸러미 생채 수확가능 시기는 3월 상순부터 6월 하순까지 가능하였고 수확기간은 섬쑥부쟁이 117일, 두메부추 109일, 어수리 102일, 참당귀 102일로 길었고 돌단풍, 산마늘, 눈개승마, 우산나물은 생채 수확가능 시기가 짧았다. 건나물 수확기간은 돌단풍, 눈개승마는 3월부터 6월까지 가능하였고, 대부분의 산채류들이 5월부터 10월까지고 산마늘과 우산나물은 건나물을 생산할 수 없었다. 산채류 기능성 꾸러미별 생채 조합 가능 시기는 항당뇨는 3월 중하순, 항고지혈증은 3월 중순, 항비만은 3월 하순, 항혈전 3월 하순, 항염증은 3월 중하순으로 조사되었다.