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섬오갈피의 수확시기와 부위에 따른 유리당 , 유기산 , 아미노산 , 무기물의 함량 변화
고정삼,양영택,좌창숙 한국농화학회 2000 Applied Biological Chemistry (Appl Biol Chem) Vol.43 No.2
In order to determine the optimum harvest time of Acanthopanax koreanum Nakai, free sugars, organic acids, amino acids and minerals were investigated. Ash, crude fat and crude protein of 4-age's tree of Acanthopanax koreanum were 2.98%∼3.90%, 1.93%∼2.34%, 3.52%∼4.23%, respectively. Minerals were 835.9 ㎎/100 g of K, 971.3 ㎎/100 g of Ca, 168.7 ㎎/100 g of Mg, 38.8 ㎎/100 g of Na, 18.6 ㎎/100 g of Fe, and 8.5 ㎎/100 g of Cu on average, respectively. Calcium content was increased distinguishably as late as harvest time, especially in stem and root. Glucose, fructose and sucrose content of stem were 0.71∼0.75%, 0.31∼0.03%, and 0.16∼0.21%, respectively. Organic acid was 381.0 ㎎/100 g∼504.9 ㎎/100 g, and was mainly consisted of succinic acid, citric acid and malic acid. Twelve kinds of free amino acids were detected. Total amino acids was 33.56 ㎎/100g∼48.60 ㎎/100 g, and it was the highest on samples harvested at September. Arginine, phenylalanine and glutamic acid were the main free amino acids of stems.
추출조건에 따른 탐라오갈피 진액(Extract) 의 제조와 그 성분조성
고정삼,좌창숙,양영택 한국농화학회 2001 Applied Biological Chemistry (Appl Biol Chem) Vol.44 No.1
Extracts of Acanthopanax koreanum Nakai were decreased as the ethanol concentration was increased, but eleutherosides were increased. Extracts were increased as the extraction time was prolonged. Compared to 15 hrs extraction, extract yield and eleutherosides for 5 hrs extraction were 90.6% and 96%, respectively. Yields of extract and eleutherosides were 6.5% and 75% at 100℃. The optimum extraction conditions were obtained from the samples of 4 years' tree harvested at September, which were water and 50% ethanol as solvents, and 90℃ for 5 hrs extraction. Soluble solids, minerals, free sugars, free acids, free amino acids and total eleuthersides in the extract of Acanthopanax koreanum were 48.2∼47.4%, 4.5∼5.3%, 11.27∼11.80%, 3.02∼3.18%, 185.33 ㎎/100 g∼348.14 ㎎/100 g and 990.84 ㎎/100 g∼1,416.10 ㎎/100 g, respectively. The extract was viscous and yellowish brown liquid.
고정삼(Jeong Sam Koh),좌창숙(Chang Sook Jwa),김영휘(Yong Whee Kim) 한국응용생명화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.2
Quality characteristics of Satsuma mandarin (Citrus unshiu Marc. var. okitsu) harvested in early December according to production areas and sea level altitude of Cheju were investigated. Soluble solids and flesh ratio were 9.06∼12.98, 77.32∼81.27% on citrus fruits harvested in orchards located below 100 m sea level (lower area), and were 10.16∼12.26, 75.00∼81.55% in orchards 150 m sea level altitude (higher area), respectively. Acid content of citrus juice was 0.83∼1.21% in fruits harvested in lower area, and was 0.94∼1.34% in higher area except Hankyung-myun area. The differences of soluble solids and acid contents by harvesting periods for 10 days were 0.91 and 0.82 for soluble solids; 0.15 and 0.13% for acid contents, respectively. In proportion to late harvesting, Brix/acid ratio and fruit quality were improving. Soluble solids of fruits harvested from lower area were higher than those of fruits from higher area, but acid contents were lower in fruits from lower area than in fruits from higher area. In sensory evaluation on fruit appearence, the differences between two altitudes were not clear, but panelists marked higher points on fruits harvested in main production areas, Seogwipo-si and Namwon-cup which are southern areas. Fruit quality harvested in Seogwipo-si areas showed better quality than fruits from other harvested areas.
토양 질산태질소 함량에 따른 시설 잎들깨 질소 웃거름시비량 추천
강성수(Seong-Soo Kang),이주영(Ju-Young Lee),성좌경(Jwa-Kyung Sung),공효영(Hyo-Young Gong),정형진(Hyung-Jin Jung),박장환(Chang-Hwan Park),윤여욱(Yeo-Uk Yun),김명숙(Myung-Sook Kim),김유학(Yoo-Hak Kim) 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.6
재배기간이 긴 잎들깨 시설 촉성재배 조건에서 질소시비 수준별 시험을 통하여 토양의 질산태질소 함량에 따른 질소 웃거름시비량 결정기준을 설정하였다. 잎들깨 주산단지인 금산과 밀양 두 지역에서 각각 1개의 시설하우스에서 질소시비량 5수준과 관행구를 난괴법 3반복과 4반복으로 각각 실시하였다. 생육시기별로 매달 건물중과 질소흡수량, 마디생 장량을 조사하였고, 토양질산태질소를 분석하였다. 금산포장의 마디당 질소 요구량은 2.2 kg 10a<SUP>-1</SUP>, 밀양포장은 3.5 kg 10a<SUP>-1</SUP>로 조사되었다. 토양질산태질소의 하한기준은 금산포장과 밀양포장 모두 NO₃-N 10 mg kg<SUP>-1</SUP>로 설정하였다. 상한기준 설정은 토심 15 cm, 용적밀도 1.2 Mg m<SUP>-3</SUP>, 토양 중 질산태질소의 이용율 70%를 적용하여 잎들깨 1마디에 필요한 질소요구량을 충족하는 수준으로 결정하여 금산포장과 밀양포장 각각 30 mg kg<SUP>-1</SUP>과 40 mg kg<SUP>-1</SUP>로 설정하였다. 따라서 금산지역은 Y=-0.157X + 4.71에 의해, 밀양지역은 식 Y=-0.1667X + 6.6667에 의해 잎들깨 1마디 생육에 필요한 질소 웃거름 시비량을 결정할 수 있었다. This study was conducted to recommend nitrogen (N) top dressing based on soil nitrate content for leaf perilla under forcing culture in Gumsan-gun and Milyang-si. Experimental design was the randomized complete block design for five N fertilization levels and conventional fertilization. Dry weight, nitrogen uptake, and the node number of leaf perilla were measured and soil nitrate contents were analyzed monthly. The amount of nitrogen uptake for growth of a node with two leaves was 2.2 kg 10a<SUP>-1</SUP> for Gumsan site and 3.5 kg 10a<SUP>-1</SUP> for Milyang site. Lower level of soil nitrate N concentration for standard N fertilization was determined as 10 mg kg<SUP>-1</SUP> for both sites. Soil depth, bulk density, utilization rate of soil nitrate N, and the amount of N uptake for growth of a node with two leaves were considered for calculation of upper level of soil nitrate N concentration. The upper levels of soil nitrate N concentration for no N fertilization were determined as 30 mg kg<SUP>-1</SUP> for Gumsan site and as 40 mg kg<SUP>-1</SUP> for Milyang site. Consequently the recommendation equations for the N top dressing were Y=-0.157X+4.71 for Gumsan site and Y=-0.1667X+6.6667 for Milyang site.
Cryptic mealybug, Pseudococcus cryptus Hempel and its natural enemies on Jeju island
Jeong Hoon Park,Jeong Heub Song,Cheol Jun Yang,Young Taek Yang,Chang Sook Jwa 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
귤애가루깍지벌레는 감귤의 주요 깍지벌레 중 하나로 시설재배에서 피해가 심하다. 귤애가루깍지벌레는 밀집하여 발생하는 특성을 갖고 있으며, 귤굴나방이나 잎말이나방류 피해 잎에 기생하고 있어 약제 방제가 어려운 원인이 되기도 한다. 제주지역의 친환경 감귤원을 대상으로 천적곤충과 병원성 미생물을 조사하였다. 천적곤충은 기생성 천척은 Anagyrus sp. 1종과 포식성 천적은 혹파리 일종인 Golanudiplosis japonicus와 꼬마남생이무당벌레 Propylea japonica, 무당벌레 Harmonia axyridis, 풀잠자리 Chrysoperla carnea, 호랑풀잠자리 Micromus sp. 5종이었다. Anagyrus sp. 성충을 황색끈끈이트랩으로 연중 시기별 발생양상을 조사한 결과 5월 하순~11월 상순까지 발생하였으며, 귤애가루 깍지벌레 1세대 기간 동안 2회의 발생성기가 나타났다. 그 외에 곤충병원성 곰팡이 일종인 Paecilomyces sp.가 확인되었 는데, 주로 장마철에 자연발생되고 있었다. 귤애가루깍지벌레 생물적 방제를 위해 수입 천적인 Cryptolaemus montrouzieri (상품명: 깍지무당벌레)를 농가에서 구입하여 활용하고 있다.
Effects of Liquid Pig Manure on Yield and Nutrition Supply of Green Manure Crops in Jeju
Kang, Ho-Jun,Yang, Sang-Ho,Kim, Yu-Kyoung,Jwa, Chang-Sook,Moon, Bong-Chun,Moon, Chae-Ran,Ko, Bok-Hee,Jung, Dae-Cheun 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.6
The effects of liquid pig manure (LPM) on the yield and nutrient supply of green manure crops, such as hairy vetch alone and hairy vetch + rye mixture, were investigated. We used three treatments: no-fertilizer (NF); LPM, $4.0t10a^{-1}$ ($N-P_2O_5-K_2O=4.0-0.024-4.0kg10a^{-1}$); and chemical fertilizer (CF; $N-P_2O_5-K_2O=4.0-0-4.0kg10a^{-1}$). The green manure crops, namely, Vicia villosa Roth. (hairy vetch) and Secale cereale L. (rye). were sown on March 11 and harvested on June 24, 2014. Yield of green manure crops significantly increased in hairy vetch + rye mixture plot compared with the hairy vetch alone plot. In hairy vetch alone plot, yield of green manure crops was increased by application of LPM and CF, but there were no significant differences. Yield of green manure crops in hairy vetch + rye fresh mixture plot significantly increased by the LPM and CF treatments, but no difference was noted between the LPM and CF treatments. Nitrogen supply by the green manure crops was higher in hairy vetch + rye mixture plot than hairy vetch alone plot. However, there was no significant difference. Phosphorus and potassium supply significantly increased in hairy vetch + rye mixture plot compared with hairy vetch alone plot. By treating LPM and CF, the nitrogen, phosphorus and potassium supply were higher than those in no fertilizer. In conclusion, LPM could replace CF. When planting green manure crops, the hairy vetch + rye mixture was more effective than hairy vetch alone to effectively use green manure crops.
Effects of Liquid Pig Manure on Yield and Nutrition Supply of Green Manure Crops in Jeju
Ho-Jun Kang,Sang-Ho Yang,Yu-Kyoung Kim,Chang-Sook Jwa,Bong-Chun Moon,Chae-Ran Moon,Bok-Hee Ko,Dae-Cheun Jung 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.6
The effects of liquid pig manure (LPM) on the yield and nutrient supply of green manure crops, such as hairy vetch alone and hairy vetch + rye mixture, were investigated. We used three treatments: no-fertilizer (NF); LPM, 4.0 t 10 a<SUP>-1</SUP>(N-P2O5-K2O = 4.0-0.024-4.0 kg 10a<SUP>-1</SUP>); and chemical fertilizer (CF; N-P₂O5-K₂O = 4.0-0-4.0kg 10a<SUP>-1</SUP>). The green manure crops, namely, Vicia villosa Roth. (hairy vetch) and Secale cereale L. (rye). were sown on March 11 and harvested on June 24, 2014. Yield of green manure crops significantly increased in hairy vetch + rye mixture plot compared with the hairy vetch alone plot. In hairy vetch alone plot, yield of green manure crops was increased by application of LPM and CF, but there were no significant differences. Yield of green manure crops in hairy vetch + rye fresh mixture plot significantly increased by the LPM and CF treatments, but no difference was noted between the LPM and CF treatments. Nitrogen supply by the green manure crops was higher in hairy vetch + rye mixture plot than hairy vetch alone plot. However, there was no significant difference. Phosphorus and potassium supply significantly increased in hairy vetch + rye mixture plot compared with hairy vetch alone plot. By treating LPM and CF, the nitrogen, phosphorus and potassium supply were higher than those in no fertilizer. In conclusion, LPM could replace CF. When planting green manure crops, the hairy vetch + rye mixture was more effective than hairy vetch alone to effectively use green manure crops.