• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.81-81
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• 2019

고추는 생식, 김치재료로 우리나라 사람이 가장 많이 식용하는 건강채소로 기능성 물질함량을 높이고자 관심이 고조되고 있다. 본 연구는 항산화 물질향상을 위한 유기농자재의 적정 농도를 구명하고자 P1(대조), P2(고추액비+산야초(4종)+약초(3종)+해초(4종)+스테비아), P3(고추), P4(고추액비+산야초(3종)+약초(3종)+해초(감태, 함초, 지총), 마늘, 쑥) 등 4처리하였다. 시험재료는 고추"전력질주"품종을 이용하여 완주지방에서 2월 19일 파종하였고 5월10일에 인공상토를 이용하여 30 cm 화분에 정식하였다. 농자재 처리에 따른 영양성분 분석은 8월 10일에 적색고추를 수확하여 농업기술실용화 재단에서 분석하였다. 유기농자재 액비처리별 베타카로틴은 P2처리에서 69%정도 높은 경향이었으나 통계적 유의성은 나타나지 않았는데, 개체 간 수분차이가 다르기 때문에 나타난 것이라고 생각되었다. 비타민c, 플라보노이드, 폴리페놀은 큰 차이를 보이지 않았다. 캡사이신, 디캡사이신은 대조구에서 가장 높게 나타났다. 액비처리별 고추 생육특성은 초장, 엽장, 엽폭, 마디수 등은 차이가 나타나지 않았다. 한편, 품종은 다르지만, 베타카로틴 등 항산화물질의 평균함량이 다른 년도에 비하여 상당이 적게 나타났다. 이것은 주로 토양, 온도환경 등이 다르기 때문에 나타난 것이라고 생각되었다. 따라서 유기농자재 액비에 따른 고추 영양성분과 항산화 물질연구는 토양, 온도, 수분, 광합성 등 환경조건의 종합적인 연구가 필요하다고 생각되었다.

• Food Science and Preservation
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• v.21 no.6
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• pp.808-814
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• 2014

The nutrient contents of pumpkins depend on many factors, including the species, climate, soil type, and plant part. The nutritional compositions of five pumpkin cultivars (red boujjang, mini hong, mini gold, boujjang, and yakhobak) were investigated. To analyze the nutrient contents of the edible parts, the other parts (seeds, skin, and stem) of each pumpkin were removed. The results showed that the proximate compositions of the edible parts of the pumpkins ranged from 74 to 87 g per 100 g for moisture, 1.6 to 3.2 g per 100 g for crude protein, 10.1 to 20.7 g per 100 g for carbohydrate content, and 2.0 to 3.4 g per 100 g for total dietary fiber. The proximate contents of the pumpkin samples were not significantly different. The thiamine contents of the pumpkins, except for red boujjang, varied from 0.03 to 0.15 mg per 100 g, but that of red boujjang had the highest level (0.60 mg per 100 g). The vitamin C contents of the pumpkins, except for boujjang, ranged from 13.0 to 14.0 mg per 100 g, but that of boujjang was the highest (49.0 mg per 100 g). In particular, yakhobak showed the highest total carotenoid and folate levels (279.5 and $74.0{\mu}g$ per 100 g, respectively). These results will be useful for coming up with better pumpkin varieties through breeding, and established the nutrient compositions of pumpkins.

• Korean Journal of Food Science and Technology
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• v.34 no.6
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• pp.977-983
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• 2002

This study was performed to establish the precise and rapid method to distinguish croakers through the pigment analysis of colored imported white croakers for adultration. We surveyed the coloring behaviors, extraction test by water and organic solvent and using pigments such as targeting, curcumine, and azo dye products. The pigment of yellow croaker is not stained on wet cloth or tissue which is rubbed on epidermis of yellow croaker and was not eluted in water extraction test, while adulterated pigments were easily extracted by water and acetone, but edible diluted yellow, Yellow No. 4 and Yellow No. 5 were not extracted. Reactive pigment was detected easily by extraction with water and dispersed pigment was also detected by extraction test. As a result of discoloring characteristics of carotene having similar structure to yellow croaker and azo dye by oxidation and reduction, azo dyes were not discolored by oxidation with sodium percarbonate or peracetic acid but that were discolored by oxidation with Fenton reagent after 1hr and by hypochlorite promptly. On the other hand, carotenes were not discolored by sodium precarbonate and Fenton reagent but discolored by sodium hypochlorite after 2 hr and by peracetic acid promptly. Azo dyes were discolored by reduction with sodium hydrosulfite and sodium carbonate but carotenes were not discolored by these reagents. This discoloring test was applicable to detect adulterated pigments and other marine product.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2007.05a
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• pp.185-189
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• 2007

• Journal of the East Asian Society of Dietary Life
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• v.14 no.6
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• pp.618-624
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• 2004

This study was performed to investigate changes of chlorophyll and carotene contents by cooking methods and parts of pumpkin(zucchini, green pumpkin, and sweet pumpkin). The hightest chlorophyll content of 3-parts(peel, cortex, and seed), all of pumpkin was peel part for chlorophyll contents by cooking methods of all kinds of pumpkin. It was the highest when cooked by non-batter frying. Carotene was relativity stable with cooking. But in case of sweet pumpkin, steaming cooking method was reduced carotene contents. β-carotene of zucchini, green pumpkin, and sweet pumpkin was higher than standard contents.

• Journal of the Korean Society of Food Science and Nutrition
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• v.24 no.2
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• pp.202-207
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• 1995

The effects of lipoxygenase, linoleic acid, tocopherol and pH on the co-oxidation of $\beta$-carotene in the aqueous system were studied. It showed that the co-oxidation of $\beta$-carotene was noticeable at both pH 7.4 and 9.0. As the concentraitons of linoleic acid and $\beta$-carotene increased, the rate of oxidation of $\beta$-carotene tended to be increased. However, $\alpha$- and $\delta$-tocopherol retarded the co-oxidation of $\beta$-carotene. As the concentrations of tocopherols increased, $\beta$-carotene was more stabilized, generally. But low concentration of $\alpha$-tocopherol(10-4M) acted more effective antioxidant than high concentration of it(10-3M) at pH 7.4. The antioxidant effect of tocopherol greatly depended on pH ; it was outstanding at pH 7.4.

• Proceedings of the Korean Society of Life Science Conference
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• 2002.05a
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• pp.9-16
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• 2002

농산부산물 중 식품화 요건이 비교적 적합한 곶감부산물을 기능성 소재로 활용하고자 전처리에 따른 유용성분인 카로티노이드의 함량변화를 조사하였다. 조추출물의 항고혈압활성 및 동물실험에 의한 항당뇨 및 지질대사 개선 효과를 조사하였다. 1. 농산부산물의 기능성 식품화에는, 함유 성분의 특정 생체 기능성, 수집성, 함수율, 안전성 등의 요건이 만족될 필요가 있다. 2. 입도와 건조온도에 따라 보존기간 중 감피의 총카로티노이드와 베타카로틴의 함량은 60일 후에 80% 정도 감소하였으며 입도가 적을수록 감소폭이 컸다. 3. 감과피의 메탄올 조추출물에 대한 항고혈압성은 $11.76{sim}58.61%$의 저해활성을 보여 품종별로 다소 차이를 보였다. 4. Streptozotocin으로 당뇨를 유도한 실험쥐에 대하여 감껍질 분말의 혈당강화 및 지질대사의 개선능력을 검정한 결과 혈당치, 총지질 및 중성지질, 총콜레스테롤의 함량이 대조구에 비하여 유의적으로 낮았다.

• Journal of Nutrition and Health
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• v.49 no.5
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• pp.323-334
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• 2016

Purpose: The purpose of this study was to estimate intakes of macronutrients and antioxidant vitamins according to the Hansik consumption rate among Korean adults. Methods: Using data from the 2007~2012 Korea National Health and Nutrition Examination Survey, a total of 33,069 subjects aged over 19 years old were included in this study. We estimated individual daily Hansik consumption rates and intakes of macronutrients and antioxidant vitamins, including vitamin A and its subgroup such as retinol, ${\alpha}$-carotene, ${\beta}$-carotene, and ${\beta}$-cryptoxanthin, vitamin C, and vitamin E, by linking food consumption data with the nutrient and antioxidant vitamin database of commonly consumed foods. Results: Around 75% of subjects consumed Hansik in over 75% of their daily total consumed food. The most frequently consumed Hansik was cabbage kimchi (1.57 times/day), followed by multigrain rice (0.86 times/day) and white rice (0.80 times/day). The household income level and education level was inversely associated with the Hansik consumption rate. There was a positive relationship between Hansik consumption rate and vitamin A, ${\beta}$-carotene, ${\beta}$-cryptoxanthin, and vitamin C intakes. On the other hand, Hansik consumption rate was inversely associated with energy and fat intake. Conclusion: The results of this study suggest that Hansik consumption could provide more antioxidant vitamins and less energy and fat. Thus, further research will be needed to analyze the association between Hansik and health effects.

• Journal of the Korean Society of Food Science and Nutrition
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• v.44 no.10
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• pp.1484-1491
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• 2015

The new cultivar Lentinula edodes, which is named 'Lentinula edodes GNA01', was bred by mating strains isolated from 'L26' and 'Kyoungwon9015' obtained from Sammyungjin Research Institute, Fujian, China. L. edodes GNA01 does not have stipes like L. edodes, although it generally has a similar spherical shape. Moisture and crude protein contents of L. edodes GNA01 were lower than those of L. edodes. Meanwhile, L. edodes GNA01 contained higher levels of crude ash, crude lipid, crude fiber, and carbohydrates than L. edodes. The ${\beta}$-carotene content ($19.05{\mu}g/100g$) of L. edodes GNA01 was about three times higher than that of L. edodes. In addition, vitamin D content ($118.53{\mu}g/100g$) of L. edodes GNA01 was more than twice that of L. edodes. L. edodes GNA01 was a good source of mineral elements, with K and Mg contents of 2,277.50 mg/100 g and 203.15 mg/100 g, respectively. The major fatty acids of L. edodes GNA01 were C16:0 and C18:2, and L. edodes GNA01 had the highest linoleic acid (C18:2) content of 1,087.66 mg/100 g. Total phenol content of L. edodes GNA01 was 12.52 mg GAE/g, and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities and ferric reducing antioxidant power (FRAP) values of L. edodes GNA01 were lower than those of L. edodes at all concentrations. However, DPPH radical scavenging activities and FRAP values of L. edodes GNA01 were above 80% and 0.9 at a concentration of 10 mg/mL, respectively.

• Journal of Bio-Environment Control
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• v.19 no.2
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• pp.117-121
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• 2010

To investigate effects of binding treatments of branches (FMB, fruiting mother branch; PSB, secondary scaffold branch; SSB, primary scaffold branch) on enlargement and coloring of persimmon 'Fuyu' fruits in ripening period, the branches were bound by steel wire. For eight weeks after binding treatments, Hunter $a^*$ of fruit peel in FMB and SSB binding treatments was more increased than in the others. In fruit characteristics harvested at eight weeks after the binding treatments, the fruit weight was heavier in the binding treatments than in control, the first of those was in SSB binding. The fruit height was higher in SSB binding than in the others, but the fruit diameter was longer in FMB and SSB binding treatments. Solid soluble content was higher in FMB and PSB binding treatments. $Chroma^*$ of the fruit peel was higher in FMB and PSB binding treatments as Hunter $a^*$ and $b^*$ values were higher and lower in FMB and SSB binding treatments, respectively. Lycopene and $\beta$-carotene content in the fruit peel were higher significantly in PSB and SSB binding treatments, total chlorophyll content in all the binding treatments was lower than in control.