• 한국약용작물학회지
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• 제28권2호
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• pp.136-141
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• 2020

Background: The leaves of the goji berry (Lycium chinense Mill.) are used as raw materials in processing and by replace fruits to some extent. The reason is that the leaves are cheaper, however, betaine content is higher than in the fruits. These experiments were conducted to determine the planting density and cutting height for producing a large number of leaves. Methods and Results: The cultivar 'Myeongan' with many branches was used. When the shoot height reached 50 cm - 70 cm, harvesting was possible four times a year. The time to next harvest was approximately 38 days after regeneration of new shoots. Leaf quantity was in the order of 1st > 2nd > 4th > 3rd harvest. Insect damage occurred during the third harvest in late July and early August, therefore, eco-friendly control was necessary. The total yield was higher at the planting density 60 cm × 30 cm than that of 60 cm × 20 cm or 60 cm × 40 cm. The yield at cutting for shoot height of 60 cm was increased by 6.3 percent compared to that of 50 cm, At the cutting height of 70 cm, harvest was difficult owing to hardening of stems and thorns. Betaine content, an indicator component of goji berry, was not significantly different according to planting densities and cutting height. Conclusions: The ideal cutting period to produce leaves of goji berry for processing is when the shoots grow to approximately 60 cm, and the leaves can be harvested 4 times a year. The dried-leaf yield was highest at the planting density of 60 cm × 30 cm.

• 고려인삼학회:학술대회논문집
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• 고려인삼학회 1993년도 학술대회지
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• pp.155-163
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• 1993

An American ginseng(Panax quillquefolium L) industry has emerged in British Columbia, Canada over the past ten years. Interest has grown very rapidly and with this development, attention is now moving away from field production issues and emphasis is being directed to enhancements in ginseng storage, drying and processing. There is a dearth of knowledge on these aspects even though they are crucial to international competitiveness. Enhancement dicatates the application of a systems approach to optimizing the harvest and post - harvest production system(crop digging, pre - washing cold storage. washing, drying and post - drying storage). Research in British Columbia to date has focussed on drying and storage issues and has resulted in the design of an enhanced commercial drying system. The role of dryer management, loading rates, airflow rates and pre - drying cold storage on American ginseng root drying rates and root quality were examined. From the dryer management experiments, there are distinct advantages to size sorting root to yield optimum drying rates. If unsorted root is used, efficiency is increased if the trays are systematically rotated. Loading rate experiments illustrate that increasing rates above those currently used in commercial dryers are possible without any sacrifice in quality. This has significant implications for commercial drying. Pre - drying cold storage is a most significant tool for managing drying operations. Over a period of six weeks, no discernable decrease in quality was found as a consequence of cold storage. Further, the moisture loss and the associated root surface changes(loss of surface soil in storage for example) provide new challenges for root quality management. Continued research and technological innovation will be crucial in addressing the demanding challenges of the future.

• Asian-Australasian Journal of Animal Sciences
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• 제17권12호
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• pp.1657-1662
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• 2004

The forage potential of mulberry (Morus alba) was evaluated under Malaysian conditions. The yield and nutrient composition of plant fractions of mulberry (whole plant, leaf and stem fractions) were determined at four harvest stages, namely, 3 (W3), 5 (W5), 7 (W7) and 9 (W9) weeks in a randomized block design. The study was conducted over a 9-month period to assess the persistence of the crop to repeated harvests. Fresh and dry matter (DM) yields of all plant fractions increased significantly (p<0.01) with increasing intervals between harvests, with highest DM yields at W9. The leaf to stem ratio declined significantly (p<0.01) from 5.2 (W3) to 0.9 (W9), indicating predominance of the stem fraction with advancing maturity. The nutritional composition of plant fractions was also significantly influenced (p<0.01) by advancing plant maturity at harvest. Crude protein (CP), ash and the metabolisable energy content of plant fractions declined significantly (p<0.01) from W3 to W9, while there was a corresponding significant increase (p<0.01) in the acid detergent fibre, neutral detergent fibre and acid detergent lignin. From this study it was concluded that the optimum stage to harvest the whole plant is 5 weeks, which is a compromise between yield, nutrient composition (CP and fibre components), and the annual number of cuts, with good crop persistence to repeated harvests. Fresh mulberry whole plant can provide a valuable supplemental source of nutrients to poor quality basal diets.

• 한국작물학회지
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• 제31권1호
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• pp.62-67
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• 1986

수확 후 3주와 8주에 맥주보리 49개 품종의 발아세, 발아율 및 수감수성의 품종간 차이를 검토하고자 실험한 결과를 요약하면 다음과 같다. 1. 수확 후 3주에 발아상의 물량 증가에 따른 발아세, 발아율, PI치와 수감수성의 차이는 컸으나 8주에는 그 차이가 적어서 휴비성이 발아세와 발아율을 저하시켰다. 2. 발아세는 휴비성이 소거된 8주에는 전 공시 품종이 극히 양호하였으며, CI 12062와 CI 15631등의 수감수성이 다소 커서 광범위한 육종재료를 교배에 이용할 경우 수감수성의 검정이 필요할 것으로 본다. 3. 수감수성은 저장기간에 관계없이 물 8ml 발아세, 발아율, PI치와 상관이 매우 높았으나 물 4ml에서는 상관관계가 없었다. 4. 저장기간, 품종 및 곡립의 풍만도에 따라서 발아세와 수감수성의 차이가 있으므로 등숙이 양호한 품종의 육성과 등숙향상을 위한 재배법이 연구되어야 할 것으로 생각된다.

• 한국식품과학회지
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• 제28권6호
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• pp.1142-1145
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• 1996

수확 후 감귤의 장기저장은 주로 곰팡이에 의한 부패로 어려움을 겪어왔다. 본 연구에서는 감귤부패 곰팡이를 수집, 동정함으로써 수확후 저장성을 증대하는데 기여하고자 하였다. 1994년 가을부터 1995년 봄에 걸쳐 대기중에 노출된 채로 상온에 저장 중 부패된 온주밀감으로부터 14개의 상이한 균주를 분리하였다. 저장 중 각 곰팡이에의한 병해의 발생빈도는 Penicillium italicum 25.8%, Monila candida 19.8%, Alternaria citri 18.1%, Mucor hiemalis 11.0%, Phomopsis citri 6.6%, Botrytis cinerea 5.5%, Phoma citricarpa 3.8%, Glomerella cingulata 3.8% 그리고 P. digitatum 1.1% 순이었고, 기타 곰팡이가 4.5%를 차지 하였다. 한편 생리적 특성상 동정된 모든 균주가 펙틴 분해효소를 생산하였다. 이러한 연구결과는 감귤의 부패와 곰팡이의 펙틴분해능간에는 연관성이 있음을 시사한다. 수집된 곰팡이 균주는 감귤의 부패를 방지하는 연구에 이용될 것이다.

• 한국버섯학회지
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• 제10권4호
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• pp.198-202
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• 2012

큰느타리버섯의 소포장에 적합한 포장형태 및 저장온도에 따른 저장기간 중 품질변화를 분석한 결과, 중량감모율은 저장온도가 높거나 저장기간이 길수록 증가하였으며, $0^{\circ}C$저장시 배지부착여부에 따른 차이가 없었으나 $4^{\circ}C$저장에서는 저장기간 38일까지 배지 부착형에서 다소 높았다. 갓신장율은 $0^{\circ}C$저장시 배지부착개체형이 비교적 낮았으며, $4^{\circ}C$저장에서는 배지 부착여부에 따른 큰 차이 없이 저장기간이 길수록 증가하였다. 저온저장 후 상온에서 기간이 길수록 중량감모율은 증가하였으며, 갓신장율은 배지부착형은 증가하였으나, 배지제거형은 6일 이후에 감소하는 경향을 보였다. 저온 저장 후 상온에서의 신선도는 배지부착형이 배지제거형보다 길게 유지되었으며, 32일 저온저장처리가 상온에서 6일까지 판매가능한 신선도가 유지되었다.

• Asian-Australasian Journal of Animal Sciences
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• 제27권9호
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• pp.1276-1284
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• 2014

In southeastern regions of the US, herbage systems are primarily based on grazing or hay feeding with low nutritive value warm-season perennial grasses. Nutritious herbage such as annual ryegrass (Lolium multiflorum Lam.) may be more suitable for preserving as baleage for winter feeding even with more intensive production inputs. Emerging in-line wrapped baleage storage systems featuring rapid wrapping and low polyethylene film requirements need to be tested for consistency of storing nutritive value of a range of annual ryegrass herbage. A ryegrass storage trial was conducted with 24-h wilted 'Marshall' annual ryegrass harvested at booting, heading and anthesis stages using three replicated in-line wrapped tubes containing ten round bales per tube. After a six-month storage period, nutritive value changes and fermentation end products differed significantly by harvest stage but not by bale location. Although wilted annual ryegrass exhibited a restricted fermentation across harvest stages characterized by high pH and low fermentation end product concentrations, butyric acid concentrations were less than 1 g/kg dry matter, and lactic acid was the major organic acid in the bales. Mold coverage and bale aroma did not differ substantially with harvest stage or bale location. Booting and heading stage-harvested ryegrass baleage were superior in nutritive value to anthesis stage-harvested herbage. Based on the investigated nutritive value and fermentation characteristics, individual bale location within in-line tubes did not significantly affect preservation quality of ryegrass round bale silages.

• Fisheries and Aquatic Sciences
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• 제2권2호
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• pp.113-121
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• 1999

Changes in lipid content, lipid class and fatty acid compositions of the cultured oysters in shallow-water, Bukman bay (Tongyeong, Korea), using both Korean and Japanese spats were investigated. The content of non-polar lipid (NL) comprised approximately $60- 80\%$ of total lipid (TL) in the cultured oysters. There was a positive correlation between NL content and meat weight, y=0.287lx-15.309 (r=0.834l, p<0.001). The prominent fatty acids of the oysters were 16:0, 20:5n-3 (eicosapentaenoic acid, EPA), 22:6n-3 (docosahexaenoic acid, DHA), 18:0, l8:1n-7, l8:1n-9, l6:1n-7, 14:0 and l6:4n-3. During the growth of the oysters, l6:4n-3 showed the highest coefficient of variation, accounting for $41.8\%$ for the Korean oyster and $32.3\%$ for the Japanese one, respectively. Both oysters showed low level of n-3 fatty acids such as DHA and EPA and high level of n-6 fatty acid, 20:4n-6, in the spawning period (August). During growth of the oysters, both EPA and DHA were the richest fatty acids in the harvest period (December, 314 mg/100g sample) and in the pre-spawning period (July, 237-247 mg/100g sample), respectively. Consequently, the cultured oyster with Japanese spat contained approximately two times more n-3 fatty acids per oyster individual than those with Korean one in the harvest season.

• 한국지역사회생활과학회지
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• 제16권1호
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• pp.105-111
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• 2005

This study was carried out to investigate the effect of Lentinus edodes which were harvested at different times of maturity on blood glucose and lipid levels in diabetic mice. The diabetic KK mice were fed diets supplemented with Lentinus edodes harvested early (LE) or late (LL) for eight weeks, and control (CO) mice were fed regular diet without Lentinus edodes. Diet intake, body weight, organ weight, blood glucose and serum lipid levels were measured. The mice which were fed diets supplemented with LE and LL showed significantly lower body weights compared to the CO group. There were no significant differences in the diet intake and the weights of different organs including liver, heart, kidneys, and epididymal fat pad among three different groups. Furthermore, the concentrations of serum triglycerides and total cholesterol were significantly lower in LE and LL groups compared to the CO group. These results clearly demonstrate that Lentinus edodes, regardless of their harvested period reduced body weight and serum lipid without affecting blood glucose level in diabetic mice.

• 한국약용작물학회지
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• 제24권2호
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• pp.110-114
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• 2016

Background: This study aimed to investigate the effect of harvest time on the growth, yield characteristics and loganin content in Dipsacus asperoides Wall. Methods and Results: Dipsacus asperoides seedlings were planted within a nursery environment in early May 2015 and harvested in early, middle and late October 2015, and early November 2015. Harvest time did not result significant differences in the plant height, stem diameter, branch length, leaf width and aboveground dry weight moreover, no significant differences were observed in root length, number of roots and root diameter. However, the diameter of lateral roots was greater in the harvests from the late October and period thereafter. The highest values of root dry weight and yield were recorded in early November. Specifically, the yield significantly increased from 205 kg/10 a (index: 100) in early October to 358 kg/10 a (index: 175) in early November, in terms of root part weight. Loganin contents of D. asperoides differed significantly among harvest times raging from 0.0766% in early October to 0.1704% in late November, thereby showing an increasing trend in later harvest times. Conclusions: These results suggest that the optimum harvest time for D. asperoides is early November, when the yield is the highest. Harvest time significantly affected loganin contents, which constantly increased from early October until early November.