• 생물환경조절학회지
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• 제19권3호
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• pp.140-146
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• 2010

본 연구는 4개의 생육상에서 주간온도 $20^{\circ}C$와 $25^{\circ}C$, 야간온도 5, 10, 15, $20^{\circ}C$의 주 야 온도 조합과 적색LED, 청색LED, 분홍LED(청색LED+적색LED), 백색LED 4종의 발광다이오드(LEDs)를 조사하여 산취(Chamecereus silvestrii f. variegata)선인장 '희망'의 모구 생육 및 발색에 가장 효과적인 재배환경을 찾고자 실시하였다. 주 야 온도처리가 황색 모구의 고유색 발현에 미치는 영향은 명도($L^*$값), 적색도($a^*$값), 황색도($b^*$값)가 모두 유의성이 있으며 특히 주간온도 $20^{\circ}C$와 야간온도 $20^{\circ}C$에서 모구색이 선명한 황색으로 관상가치가 가장 높았고, 주간온도 $25^{\circ}C$와 $5^{\circ}C$, $10^{\circ}C$ 각각의 야간온도에서 모구색 품질이 저하되는 것으로 나타났다. 발광다이오드(LEDs) 처리는 $a^*$값과 $b^*$값에서 유의적 차이가 있으며 적색LED에서 $a^*$값은 +5.23, $b^*$값은 +39.9로 산취선인장의 고유의 아름다운 황색 발색을 유지하며 구색품질이 가장 좋았다. 따라서 산취선인장의 모구색 발현에 영향을 주는 최적 온도범위와 발광다이오드(LEDs)는 주간온도 $20^{\circ}C$와 야간온도 $20^{\circ}C$이며 단색광인 적색 LED에서 가장 효과적이었다. 또한 산취선인장 재배에서 모구색의 외적 품질 향상은 적정 온도 환경 유지보다는 광질 환경을 개선하는 것이 보다 효율적이며 특히 발광다이오드(LEDs) 적색LED가 황색계통의 고유한 모구색 발현에 효과적인 것으로 나타났다.

• 한국식품저장유통학회지
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• 제15권1호
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• pp.150-154
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• 2008

향후 국산 포도를 이용한 고품질의 국산 백포도주를 개발하여 국내 소비자의 기호에 맞는 백포도주 제조 및 백포도주 양조 기술의 발전을 위해 생식용 수입 포도인 Red globe과 Thomson Seedless를 이용하여 발효특성과 포도주의 특징에 대하여 연구하였다. pH변화는 1차 발효 중 감소하는 경향을 보여주었고, 두 품종을 1:1비율로 혼합한 백포도주는 레드글로브와 탐슨시들리스의 중간 값의 pH를 보여주었다. 산도의 변화는 1차 발효기간 동안 증가하다가 발효기간이 길어질수록 일정한 경향을 보여 주었다. pH변화와 만찬가지로 레드글로브와 탐슨시들리스를 1:1혼합한 산도의 변화도 pH와 마찬가지로 중간 값을 나타내었다. 당도의 변화는 발효기간 15일부터 안정한 변화를 나타내주었다. 비중의 변화도 당도와 마찬가지로 발효기간 15일부터 안정한 변화를 나타내었다. 색도 L값의 변화는 역시 마찬가지로 발효기간이 길어질수록 증가하다가 일정한 경향을 보여주었다. 색도 a값의 변화도 발효기간이 길어질수록 일정한 값을 나타내었다. 처음 레드글로브의 값이 높은 이유는 품종이 갖고 있는 고유특성 때문이라고 여겨지며 색도 b값의 변화도 발효가 길어질수록 일정한 값을 나타내었다. 수입 생식용 포도를 이용한 백포도주 제조공정 중의 품질 변화의 차이는 없음이 조사되어졌고, 수입 생식용 포도를 이용한 최종 시제품과 유통 중인 백포도주와의 제품특성을 관능검사로 비교해본 결과, 품질특성 차이가 적게 나타남을 관능적 평가로 알 수 있었다.

• 농업과학연구
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• 제46권1호
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• pp.45-56
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• 2019

As a result of analyzing the quality of imported grapes during the 2018 season, the hardness of the grape berry was found to be 10 N or less in total. In the case of Chilean grapes, the soluble solids tended to be lower as imports and distribution periods were delayed. The berry weight was the largest at 14.4 - 14.8 g for the 'Red Globe', 7.1 - 7.4 g for the 'Thompson Seedless' and 6.0 - 7.0 g for the 'Crimson Seedless'. The 'Crimson Seedless' grapes imported from Chile, which had a high berry shatter rate, had a shorter pedicel length, pad width and brush length than that of the other 2 varieties. Regardless of the grape varieties, the weight loss during the distribution at room temperature ($25^{\circ}C$) increased rapidly as the import season was delayed. Additionally, it was found that the later the distribution seasons, a higher stem browning index was observed regardless of the variety. The 'Thompson Seedless' was revealed to be more susceptible to browning than that of the other varieties. The shrinkage of the stem and the pedicel browning progressed within a short time during shelf-life as the distribution time was delayed. The incidence of berry decay of the imported grapes tended to increase with the progression of the distribution period. In the fruits distributed on April, except for the 'Crimson Seedless', the grapes were rapidly corrupted in the second half of the distribution. The 'Red Globe' grapes completely lost marketability due to a berry decay of 26.1% and 69.9% at 9 and 12 days after shelf-life, respectively.

• 식물병연구
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• 제18권3호
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• pp.217-224
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• 2012

수확 후 부패는 큰 경제적 손실과 포도의 품질을 낮추는 요인이다. 또한 이는 포도 수출의 중요한 제한 요인 중 하나이다. 본 연구에서는 칠레로부터 수입한 '레드글러브' 품종의 부패병과 원인 병원균을 동정하였다. 포도 수입항 근처의 저장창고로부터 부패병이 발생한 포도를 수집하였다. 수입포도 '레드글러브' 품종에서 melting decay, 잿빛곰팡이병, 푸른곰팡이병의 3가지 부패병이 관찰되었다. 전형적인 melting deay로부터 분리한 세균은 16S rDNA의 염기서열과 지방산 프로필을 기초로 Gluconobacter cerinus로 동정하였다. 건전한 포도에 접종에 의해 분리균은 melting decay의 특징인 포도 알 표피의 열과와 괴저를 유도하였다. 잿빛곰팡이병과 푸른곰팡이병 병징을 보이는 포도로부터 Botrytis cinerea와 Penicillium expansum을 분리하였다. 이 2가지 균류는 형태적 특징과 beta-tubulin 유전자의 염기서열을 기초로 동정하였다. 이들은 한국에서 가장 많이 생산되는 '캠벨얼리' 품종에서 강한 병원성을 보여 주었다.

• Fisheries and Aquatic Sciences
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• 제21권7호
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• pp.19.1-19.11
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• 2018

Background: Traditionally, East-Asians (Korea, Japan, and China) utilize seaweeds as a food source and ingredient in traditional medicine. Korea is one of the biggest seaweed producer and consumer in the global trade. Especially, side dishes made from seaweeds are very popular in the traditional Korean cuisines. Seaweeds are popular as fresh vegetable salads and soup or eaten as snacks. Main body: Seaweeds are rich in essential nutrients, minerals, and vitamins as well as a promising source of novel bioactive compounds. The compounds (polysaccharides, polyphenols, and sterols) present in the edible Korean seaweeds possess important bioactive properties such as antioxidant, anti-inflammation, anticancer, anti-diabetic, and anticoagulant properties. Thus, the long-term consumption of seaweed has a potential to reduce the risk of cancer, diabetes, obesity, and inflammation-related complications. However, seaweed consumption is limited to the small population around the globe. Thus, it is important to increase the awareness of the health benefits of seaweeds consumption among the general population. Short conclusion: In the present study, we discussed some popular green and red edible Korean seaweeds and their health-promoting properties. This study might be useful to increase the public awareness of the consumption of seaweed as a food source.

• 화훼연구
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• 제16권3호
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• pp.196-199
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• 2008

접목선인장 신품종 '다홍'은 흑적색의 '9508021'계통을 모본으로 진적색의 '진홍'을 부본으로 2002년에 교배한 후대이다. 2003년 기외에서 접목한 후에 2006년까지 3회에 걸쳐 그 특성이 조사되었다. 구는 진적색의 편원형이며, 가지자리에 같은 색의 자구가 모구하부에 정연히 착생된다. 또한 몸체에 8~10 결각이 있으며, 회색의 반직립 가시를 가지고 있다. 자구 착생수는 평균 13.6개로 10.4개의 대조품종 '진홍'보다 우수하였다.

• 통합자연과학논문집
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• 제11권2호
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• pp.69-75
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• 2018

The red algae Gracilaria vermiculophylla is widely spread around seaside areas across the globe, and has been used as a food resource in Southeast Asian countries. Previous studies have shown that Gracilaria red algae extracts have beneficial antihypercholesterolemic, antioxidant, anti-inflammatory, and antimicrobial effects. In this study, we investigated the antioxidant effects of Gracilaria vermiculophylla extracts (GV-Ex) on human bone marrow mesenchymal stem cells (hBM-MSCs). The acetone and DMSO/ethanol solvents of the tested GV contain higher total flavonoid and polyphenolic contents that can strongly scavenge reactive oxygen species (ROS). Pre-treatment with GV-Ex protected hBM-MSCs against oxidative stress induced by hydrogen peroxide treatment. The protective effects of GV-Ex treatment were confirmed by MTT assay. The elevated levels of ROS in hBM-MSCs caused by hydrogen peroxide induced oxidative stress were significantly decreased by GV extract treatment. The levels of the antioxidant proteins superoxide dismutase 1 (SOD1), superoxide dismutase 2 (SOD2), and catalase (CAT) were also restored or protected by GV-Ex treatment, suggesting that GV extracts moderate excess ROS levels and prevent cells from oxidative damage.

• 한국육종학회지
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• 제41권1호
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• pp.1-8
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• 2009

This study was carried out to breed and develop high quality and functional nutrient tomato with multi disease resistance as well as a stable growing adaptation for fresh market usage under protected plastic houses cultivation. The materials were used 5 inbred lines and their 6 hybrids of large tomato group, which have been bred and developed from 1999 to 2007 in Division of Plant Resource Department of Chungnam National University. Fruit weight showed hybrid vigor effect that $F_1$ hybrids weighed more than their parent lines, fruit shape formed three type of oblate, deep oblate and globe shape, in firmness and pericarp thickness have got a high significant correlation, inbred DN611 line was measured the most firm fruit with 6.04 mm pericarp thickness. In fruit color at maturity, pink color crossed to red color appeared all red fruit color in the $F_1$ hybrids, it means red skin color is a dominant gene compared to pink skin color is a recessive gene in tomato, while between fruit skin color and shoulder part color showed no any co-relationship. The sugar content and titratable acid of $F_1$ hybrids inherited an intermediate data of their parent lines, the flavor of KP543 inbred line and the hybrid (JB535 x KP543) revealed the better taste with high brix and proper titratable acid content$^{*}$. In beta carotene content DN611 line showed 2~3 times higher than other materials so that its 3 hybrids contained an increased level of beta carotene, lycopene content was not so much difference among inbred lines and $F_1$ hybrids, of them MD508 contained higher of 8.72 mg and hybrid (JB535 x JA517) had 8.05 mg lycopene content per 100 g fruit, overall pink skin color and red skin color measured a higher lycopene content than yellow and orange skin color at ripe stage. In disease resistance test by PCR marker for Fusarium race2 (I2), Nematode (Mi1), ToMV ($Tm2^2$), Cladosporium (Cf9), (JB535 x JA517) hybrid have got multi-resistance with homozygote band in Nematode, ToMV, Cladosporium and heterozygote band in Fusarium race2. Through this breeding program we could select high quality and functional nutrient with multi resistant $F_1$ hybrids and inbred lines in tomato which are two best hybrids (JB535 x MD508), (JB535 x JA517), additionally developed high beta carotene inbred line DN611 and increased the level of lycopene inbred line MD508. These results will be very useful to make a high quality tomato variety continuously.

• 한국의류학회지
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• 제28권5호
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• pp.713-722
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• 2004

This study examined the effects of two kinds of functional sun hats through a head-manikin test and a climatic chamber trial for farm workers in summer. Experiment was composed of four conditions. The first condition was the condition without any hat (Control). The second was the condition with a sun hat on the market (Hat A). The third was the condition with a functional sun hat made of reflective fabric (Hat B). The last was the condition with a functional sun hat having a ventilating structure as well as reflective fabric (Hat C). For the subjects in the climatic chamber trials, 12 healthy males volunteered. Air temperature, relative humidity and globe temperature in the chamber was maintained at $33{\pm}0.5^{\circ}C,\;65{\pm}5%RH\;and\;39{\pm}1^{\circ}C\;(WBGT\;33^{\circ}C)$. Subjects did a simulated red pepper-work (50-min work and 10-min rest, twice repetition) for 120 min. As the result of head-manikin test, the surface temperature on middle of back-neck was the lowest in Hat B of four conditions and the surface temperature on top of head was the lowest in Hat C. As the result of climatic chamber trials, there were apparent differences between with (Hat A, Hat B, Hat C) and without a sun hat (Control). In rectal temperature ($T_{re}$), mean skin temperature ($\={T}_{sk}$), heart rate (HR), total sweat rate (TSR), The physiological heat strain was less in the condition with hats than in the condition without a sun hat. As the increasing rate in Tre, Hat B is the most effective hat for alleviation heat strain. As the subjective responses, Hat B was the most effective hat for thermal comfort even though the difference was not significant. Hat C was less effective than Hat B and the reason might be the increase of weight due to inserting the ventilating structure.

• 한국식품영양과학회지
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• 제36권7호
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• pp.874-880
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• 2007

품종에 따른 포도를 이용하여 3일 동안 $4^{\circ}C$와 실온에 각각 저장함에 따라 변화하는 전체적인 향의 패턴을 전자코를 통하여 분석하였고 SPME-GC/MS 분석 결과를 통하여 휘발성분을 분리 동정하였다. 대표적인 포도의 주요 휘발 성분은 alcohols, esters, acids, terpenes 등으로 GC/MS 분석 결과 butanoic acid/ethyl ester와 1-hexanol, hexanoic acid/ethyl ester, phenylethyl alcohol 등이 주요 성분으로 동정되었다. 캠벨은 다른 품종에 비해 다양한 휘발 성분이 동정되었고 레드글로브와 머루 품종에서는 1-hexanol, 2-decene, 8-methyl-(z)/1-dodecanol 등을 제외한 나머지 휘발 성분은 거의 나타나지 않았다. 또한 전자코를 이용하여 휘발성 향기성분 패턴 분석결과 $4^{\circ}C$와 실온 저장한 시료의 제 1주성분 값의 기여율은 각각 99.30, 99.36%로 품종에 따라 구분이 가능하였다. $4^{\circ}C$ 저장 시 저장 기간에 따른 제 1주성분 값의 변화 범위는 실온에서 저장한 것에 비해 적었음을 확인할 수 있었다.