• Title/Summary/Keyword: korean cherry

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Influence of Food Ingredients on the Formation of Heterocyclic Aromatic Amine in Cooked Pork Patties

  • Shin, Han-Seung
    • Food Science and Biotechnology
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    • v.14 no.5
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    • pp.572-575
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    • 2005
  • The effects of cooking method, cooking time and various food ingredients on the formation/ inhibition of heterocyclic aromatic amines (HAAs) in pork products were investigated. Three HAAs, 2-amino-3,8-dimethylimidazo [4,5-f] quinoxaline ($MeIQ_x$), 2-amino-3,4,8-trimethylimidazo [4,5-f] quinoxaline ($DiMeIQ_x$) and 2-amino-1-methyl-6-phenylimidazo [4,5-b] pyridine (PhIP) were measured in pork products using solid-phase extraction and HPLC. Pork patties were boiled, oven-broiled and pan-fried to internal temperatures of 71, 77 and $88^{\circ}C$. Generally, HAA concentrations increased with increasing internal temperature, and HAA formation was greatest with pan-fried. Selected food ingredients (vitamin E, sodium nitrite, sodium tripolyphosphate, sodium ascorbate, Nanking cherry tissue and cherry tissue extract) inhibited HAA formation in pork patties fried at $225^{\circ}C$ for 10 min/side, with the greater inhibition provided by cherry tissue and its methanolic extract.

Textural properties of Activated Carbons from Wild Cherry Stones as Determined by Nitrogen and Carbon Dioxide Adsorption

  • Alaya, M.N.;Youssef, A.M.;Karman, M.;Abd El-Aal, H.E
    • Carbon letters
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    • v.7 no.1
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    • pp.9-18
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    • 2006
  • Activated carbons were obtained by activating wild cherry stones with different concentrations of phosphoric acid or zinc chloride at different temperatures. The adsorption of $N_2$ at 77 K and of $CO_2$ at 273 K was followed and the data were analyzes by considering different adsorption models. The activated carbons obtained measured high surface area with the most of the surface in all samples located in micropores. Fair agreement was found between the nitrogen surface areas calculated from the BET-, t-, ${\alpha}$- and DR- methods, although the first three are based on surface coverage whereas the latter is based on micropore filling. The carbon dioxide surface areas calculated by the DA equation were smaller than the comparable nitrogen areas. This was ascribed to domination of surface coverage mechanism, the absence of activated diffusion process. Based on this explanation the $CO_2$-surface areas as calculated by DA equation should be taken with great reservation.

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Effects of oyster mushroom as a feed addictive in juvenile cherry salmon

  • Oh, Tae-Seok;Park, Youn-Jin;Lim, Hyun-Goo;Jung, Hea-Young;Jang, Myoung-Jun
    • Journal of Mushroom
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    • v.17 no.2
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    • pp.47-51
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    • 2019
  • Our research on juvenile Oncorhynchus masou masou in oyster mushroom supplemented diet was studied to investigate the effect of feeding. Mixing of feed ingredients for dried oyster mushrooms, 3.5, 7.0, 10.5, 14.0 (%) was added to the amount of oyster mushroom dietary beta-glucan content of the more abundant. After the weight of feed given to salmon survey oyster mushrooms diet for 3.5 to 7.0% was similar to the formula feed and the weight of the fish ate oyster mushroom feed over 10.5% were reduced. The oyster mushroom of the experimental diets containing 3.5 to 7.0 percent hepatosomatic index and feed coefficient figure was similar to those of the formulated diets. Therefore we have juvenile cherry salmon fed diets containing 3.5 to 7.0% was considered good to eat and additional research on the immune response will be carried out was necessary.

Black Dot Root Rot of Tomato Caused by Colletotrichum coccodes (Colletotrichuym coccodes에 의한 토마토 검은점뿌리썩음병(흑점근부병))

  • 김완규;지형진;조원대
    • Korean Journal Plant Pathology
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    • v.14 no.3
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    • pp.209-211
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    • 1998
  • Black dot root rot occurred severely in greenhouse tomatoes in jangseong area of Korea in April, 1996. The causal fungus of the disease was identified as Colletotrichum coccodes based on the morphological and cultural characteristics. Pathogenicity tests revealed that isolates of the fungus were responsible for the disease, and two cultivars of cherry tomato were less susceptible to the disease than other cultivars of tomato and cherry tomato tested.

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Vitamin C and antioxidant capacity stability in cherry and romaine during storage at different temperatures (저장 조건에 따른 로메인 및 체리의 비타민 C 함량 및 항산화능의 변화)

  • Park, Hee Jung;Lee, Myung Joo;Lee, Hye Ran
    • Journal of Nutrition and Health
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    • v.49 no.1
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    • pp.51-58
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    • 2016
  • Purpose: The aim of this work was to study the change in antioxidant activity depending on storage temperature and storage period in romaine and cherry. Method: The plant material was stored at $0.7{\pm}0.6^{\circ}C$, $3.5{\pm}2.8^{\circ}C$, and $4.7{\pm}1.4^{\circ}C$. Cherry and romaine were stored for a period of 9 days and 7 days, respectively. The cherry was taken from each group of samples at regular intervals of days and the romaine was taken from each group of samples at regular intervals of 2days. Vitamin C, total polyphenol, and total flavonoid stability and antioxidant capacity including DPPH, total antioxidant capacity (TAC) were measured. Results: For cherry, the levels of TAC and flavonoid were higher at the $0.7{\pm}0.6^{\circ}C$ condition than other conditions (p < 0.05). The polyphenol and vitamin C levels were not significantly different among storage conditions. In the case of romaine, the level of TAC was highly preserved until 7 days at the $0.7{\pm}0.6^{\circ}C$ condition. Vitamin C level was significantly lower at the $3.5{\pm}2.8^{\circ}C$ condition (p < 0.05). DPPH activity was highest at the $0.7{\pm}0.6^{\circ}C$ condition (p < 0.05). DPPH activity was shown in order of $0.7{\pm}0.6^{\circ}C>4.7{\pm}1.4^{\circ}C>3.5{\pm}2.8^{\circ}C$. Conclusion: The results indicated that the narrow differences and fluctuation in temperature were associated with antioxidant capacity and it might enhance the nutritional shelf life of vegetables and fruits.

Structual Observation of Fruit Skin and Influence of Rainfall Inducing Fruit Cracking in 'Sato Nishiki' Sweet Cherry (체리 '좌등금'의 과실표면 구조 관찰과 강우가 열과발생에 미치는 영향)

  • Yoon, Ik-Koo;Nam, Eun-Young;Shin, Yong-Uk;Yun, Seok-Kyu;Moon, Byung-Woo;Choi, Cheol;Kang, Hee-Kyoung
    • Journal of Bio-Environment Control
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    • v.19 no.4
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    • pp.382-386
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    • 2010
  • Fruit cracking of sweet cherry fruit due to rain near harvest is a major source of crop loss in the cherry industry. The objection of this study was to understand the sweet cherry fruit cracking. Depending on the year, the disorder is characterized by a cracking of the outside layer of the cherry skin, as called cuticle. The crackings were appeared around the stem end, where water could accumulate, but was also seen fruit side or apical end. The cracking was observed mostly in the fruit apical end in 2004 and around the stem end in the other years. It had more rainfall at early season of fruit growth, early May, in 2004 and 2006 compared to other years. Those years showed higher rates of the fruit cracking occurrence. The hypodermal layer was examined on cracking susceptible cultivar, 'Sato Nishiki' from young to mature fruit cuticle. The hypodermal layers of the stem end area were decreased by one to two layers and fruit apical end area was cracked as fruit development. When fruits were immersed in distilled water, the larger fruit (> 6 g) had more cracking ratio than smaller fruits (< 4.5 g).

Analysis on Growth and Yield of Cherry Tomato Grown in a Two-Story Bed System Adapted to Strawberry Cultivation as Affected by the Planting Time during the Uncultivated Period (딸기 재배용 2단 베드 시스템에서 휴작기 이용 방울토마토 재배 시 정식 시기에 따른 생육과 생산성 분석)

  • Choi, Hyo Gil;Moon, Byoung Yong;Kang, Nam Jun;Ko, Dae Whan;Kwon, Joon Kook;Lee, Jae Han;Park, Kyoung Sub
    • Horticultural Science & Technology
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    • v.34 no.2
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    • pp.228-235
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    • 2016
  • This study was conducted to determine the yield of cherry tomato (Solanum lycopersicum Mill.) grown at three planting times during the uncultivated period of strawberry. Cherry tomato was planted under condition filled with strawberry dedicated culture medium on a two-story bed with April 20, April 30, and May 10 at 2015. Fruit harvest was completed on July 31. The supply concentration of nutrient solution at the time of transplanting was started as EC $1.2dS{\cdot}m^{-1}$ and it was gradually increased to EC $2.5dS{\cdot}m^{-1}$ after blooming of the first flower cluster. Netherlands PBG solution was supplied for one minute six times per day. The heights of cherry tomato plants planted at earlier were significantly greater than those of tomato plants planted later. The heights of cherry tomato plants grown at the bottom of the bed were greater than those grown in the upper bed. The yield of cherry tomatoes planted on April 20 at the bottom of the bed was greatest with an average of 2,954 g of tomatoes per plant. There were no significant differences in the average weight and sugar content of fruit according to planting times and bed position. The yield of cherry tomato plants planted on April 20 was 18% and 34% higher than that of plants planted on April 30 and May 10. We confirmed to increase the yield of the cherry tomato when early plants planted on two-story bed. These results indicate that farmers can choose the best period of producing cherry tomato during the un-cultivated period of strawberry under two-story bed conditions.

Functional Properties of the Lycopene Cultivar of Cherry Tomato (Lycopersicon esculentum var. cerasiforme) (방울토마토 (Lycopersicon esculentum var. cerasiforme) 라이코펜 품종의 기능적 특성)

  • Choi, Suk Hyun;Ahn, Jun Bae
    • Culinary science and hospitality research
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    • v.20 no.6
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    • pp.115-127
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    • 2014
  • This study was carried out to investigate the effectiveness of the Lycopene cultivar of cherry tomatoes as a functional food and food material by measuring the total polyphenol and flavonoid content, anti-oxidative and anticancer activity. The contents of polyphenol and flavonoid were $12.28{\pm}1.78mg$ and $3.89{\pm}0.54mg$ per one g of dried cherry tomatoes respectively. The anti-oxidative activity of the cherry tomato was verified by measuring ${\alpha}$-${\alpha}$-diphenyl-${\beta}$-picrylhydrazyl (DPPH) radical scavenging activity (DSA), 2,2'-azinobis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging activity (ASA) and ferric reducing antioxidant power (FRAP). 50% of radical scavenging concentrations ($IC_{50}$) of DSA and ASA were $328.64{\pm}4.190{\mu}g/mL$ and $350.61{\pm}3.300{\mu}g/mL$ respectively. FRAP value was $26.92{\pm}0.68{\mu}mol$ $Fe^{2+}/g$. The effects of the cherry tomato extract on the growth of a normal lung cell (Hel299), lung cancer cell (A549), cervical cancer cell (HeLa) and a liver cancer cell (HepG2) were investigated using MTT assay. The cherry tomato extract showed a significantly strong growth inhibition effects against A549 cell and $IC_{50}$ was $375.46{\pm}33.670{\mu}g/mL$. The extract also inhibited growths of HeLa and HepG2 cells weakly. In this study we found that Lycopene cultivar of cherry tomato had anti-oxidative activity and strong inhibition effect against lung cancer cells. These results indicate that the Lycopene cultivar of cherry tomato would be a functional food and food material.

An Improved Method for Phenology Model Parameterization Using Sequential Optimization (순차적인 최적화 기법에 의한 생물계절모형 모수추정 방식 개선)

  • Yun, Kyungdahm;Kim, Soo-Hyung
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.16 no.4
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    • pp.304-308
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    • 2014
  • Accurate prediction of peak bloom dates (PBD) of flowering cherry trees is critical for organizing local cherry festivals and other associated cultural and economic activities. A two-step phenology model is commonly used for predicting flowering time depending on local temperatures as a result of two consecutive steps followed by chill and heat accumulations. However, an extensive computation requirement for parameter estimation has been a limitation for its practical use. We propose a sequential parameterization method by exploiting previously unused records of development stages. With an extra constraint formed by heat accumulation between two intervening stages, each parameter can then be solved sequentially in much shorter time than the brute-force method. The result was found to be almost identical to the previous solution known for cherry trees (Prunus ${\times}$ yedoensis) in the Tidal Basin, Washington D.C.