• Title/Summary/Keyword: fruits

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Analysis of consumption frequencies of vegetables and fruits in Korean adolescents based on Korea youth risk behavior web-based survey (2006, 2011)

  • Kim, Yangsuk;Kwon, Yong-Suk;Park, Young-Hee;Choe, Jeong-Sook;Lee, Jin-Young
    • Nutrition Research and Practice
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    • v.9 no.4
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    • pp.411-419
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    • 2015
  • BACKGROUND/OBJECTIVES: This study analyzed factors affecting consumption frequencies of vegetables and fruits in Korean adolescents. SUBJECTS/METHODS: Consumption frequencies of vegetables and fruits, general characteristics, meal, health, and other variables were analyzed for a total of 147,047 adolescents who participated in the KYRBWS (Korea Youth Risk Behavior Web-based Survey) conducted in 2006 and 2011 by the Korea Centers for Disease Control and Prevention. RESULTS: Consumption frequencies of vegetables and fruits more than once a day significantly decreased in 2011 compared to 2006 based on Chi-square test conducted for every factor employed in the study. Analysis of factors showed that consumption frequencies of vegetables and fruits were reduced in both study years as subjective income decreased, whereas intake frequencies increased with mother's education level and reduction of adolescent stress level. CONCLUSIONS: In general, consumption frequencies of vegetables and fruits decreased in 2011 compared to those in 2006. Thus, future research needs to improve dietary guidelines for nutrition education in order for students to recognize the importance of food consumption and necessity of increasing daily serving sizes of vegetables and fruits for their balanced consumption.

An analysis on the purchase behavior of environment-friendly fruits: grape and mandarin (친환경 과일의 구입 행위 분석: 포도와 감귤을 대상으로)

  • Kim, Sounghun;Sohn, Chang-Soo;Lee, Ki-Young
    • Korean Journal of Agricultural Science
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    • v.42 no.4
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    • pp.455-460
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    • 2015
  • Even though many Korean consumers have bought environment-friendly fruits, including grapes and mandarins, farmers and suppliers still have little information about how they make a decision for the actual purchase in the real markets. Without the suitable information of purchase behavior of environment-friendly fruits, farmers and suppliers cannot set up the efficient marketing strategy which can create the better agricultural products for Korean consumers. The purpose of this paper is to analyze the consumers' purchase behavior of environment-friendly fruits in Korea. Especially, this study was focused on the grapes and mandarins, through the survey research and the frequency analysis. The results of study in this paper present a few findings useful as follows: First, Korean consumers have the strong concern of environment-friendly agricultural products, including fruits. Second, consumers usually buy environment-friendly fruits by two times per month. Third, consumers generally concern taste, freshness, and food-safety, when they buy environment-friendly grape or mandarin.

Induction of Apoptosis with Kigelia africana fruits in HCT116 Human Colon Cancer Cells via MAPKs Signaling Pathway

  • Guon, Tae-Eun;Chung, Ha Sook
    • Natural Product Sciences
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    • v.22 no.3
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    • pp.209-215
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    • 2016
  • Kigelia africana (Lam.) Benth. (Bignoniaceae) is a flowering plants in South, Central and West Africa and commonly known as the sausage tree (Eng.); worsboom (Afr.); umVunguta, umFongothi (Zulu); Modukguhlu (North Sotho); Muvevha (Venda). The dried, powdered fruits are used as dressing for wounds and ulcers, haemorrhoids, rheumatism, purgative, skin-firming, lactation in breast-feeding mothers. The aim of this study is to investigate the cytotoxic and apoptotic potentials of 70% ethanolic extracts of Kigelia africana fruits in HCT116 human colon cancer cells. Treatment of Kigelia africana fruits with various concentrations resulted in a sequence of characteristic of apoptosis, including loss of cell viability and morphological changes. Flow cytometry analysis showed Kigelia africana fruits increased the sub-G1 phase (apoptosis) population. Apoptosis confirmed by annexin V-fluorescein isothiocyanate and propidium iodide double staining in HCT116 human colon cancer cell lines. Moreover, analysis of the mechanism indicated that Kigelia africana fruits showed an increased Bax and Bcl-2 expressions in a dose-dependent manner, resulting in activation of hallmarks of apoptotic events, caspase-3, caspase-9 and cleaved poly-ADP-ribose polymerase. This is the first report to demonstrate the cytotoxicity of Kigelia africana fruits on HCT116 human colon cancer cells.

Changes in Pattern of Tannin Isolated from Astringent Persimmon Fruits (떫은감에서 분리한 탄닌성분의 패턴 변화)

  • 서지형;정용진;신승렬;김주남;김광수
    • Food Science and Preservation
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    • v.6 no.3
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    • pp.328-332
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    • 1999
  • This study was investigated pattern changes of tannin isolated from astringent persimmon fruits. The contents of total phenolics and soluble tannins decreased as the maturing and softening of persimmon fruits proceeded. Green and mature persimmon tannins reacted with acetaldehyde. The more contents of tannin increased, the more reactions became. And the reaction of green Persimmon tannin was more active than mature persimmon tannins. But tannin from soft persimmon fruits did not react with acetaldehyde. Tannins were more polymerized during maturing and softening of fruits. So there was a little difference in chromatography of persimmon tannins. Also green and mature persimmon tannins obtained 4 bands respectively after thin layer chromatography analysis. But there was only 2 bands in soft persimmon tannin. As softening of persimmon fruits proceeded, most of tannins reacted with acetaldehyde, so coagulated. Also the component of soluble tannins was changed during softening of persimmon fruits.

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Comparison of Accumulation of Capsaicinoid Contents with Capsaicinoid Synthetase Activity at Different Developmental Stages of Capsicum annuum L.

  • Kim, Kye-Won;Varindra, R.;Cho, Kang-Jin;Kim, Jong-Guk;Lee, Shin-Woo
    • Journal of Applied Biological Chemistry
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    • v.43 no.3
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    • pp.152-155
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    • 2000
  • The contents of various capsaicinoids viz. nordihydrocapsaicin (NDC), capsaicin (CAP), and dihydrocapsaicin (DHC) were determined in different parts of fruits (placenta, pericarps, seeds, and whole fruits) at different developmental stages after flowering and compared with the capsaicinoid synthetase (CS) activity. The capsaicinoid contents were very low up to 24 days after flowering (DAF), and there was a significant increase at 36 DAF in all parts of fruits. The enzyme activity of placenta increased to maximum at 24 DAF, and thereafter it gradually decreased. There were no significant amounts of enzyme activities in other parts of the fruits. In Subicho (inbred line) the content of DHC was slightly higher than CAP in all parts. of the fruits throughout the development stages of fruits, whereas in Chung Yang the CAP content was higher compared to the DHC content. The contents of total capsaicinoids in Chung Yang were also higher than Subicho. However, the crude enzyme extract obtained from Chung Yang led to the synthesis of DHC almost exclusively when the substrate, 8-methyl nonanoic acid, was added to the reaction mixture. Our results suggest that the composition of individual analogue of capsaicinoids depends upon the substrate available in the fruits.

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Effect of Unripened fruits and Ripened fruits of Rubus coreanus Miquel on Murine Peritoneal Macrophages (복분자 미숙과 및 성숙과가 생쥐의 복강 Macrophages에 미치는 영향)

  • Lee Taek Yul;Kim Dae Keun;So June No;Kwon Jin;Song Jung Mo;Eun Jae Soon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.4
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    • pp.991-995
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    • 2003
  • The purpose of this research was to investigate the effects of unripened fruits and ripened fruits of Rubus coreanus Miquel on murine peritoneal macrophages. The 70% ethyl alcohol extracts (20 or 100 mg/kg) of unripened fruits (RCE-I) and of ripened fruits (RCE-II) were administered p.o. once a day for 7 days to mice. RCE-I and RCE-II decreased the phagocytic activity of murine peritoneal macrophages and the production of nitric oxide. Also, RCE-I and RCE-II increased the production of tumor necrosis factor- a from peritoneal macrophages. In general, the immuno-suppressive action of RCE-I on macrophages was more potent than those of RCE-II. These results suggest that the fruits of Rubus coreanus Miquel regulates the non-specific immune response via decrease of phagocytic activity and increase of production of tumor necrosis factor- a from murine peritoneal macrophages.

Chilling Responses of Chilli Pepper Fruits at Different Ripening Stages to Low Temperature during Storage

  • Lim, Chae-Shin;An, Chul-Geon;Huh, Moo-Ryong
    • Journal of agriculture & life science
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    • v.44 no.1
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    • pp.1-8
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    • 2010
  • This study was conducted to investigate effect of low temperature and ripeness stages on fruit quality of chilli pepper (cv. Nockgwang) during storage at 5, 7, and $10^{\circ}C$. Fruits at three ripeness stages were selected based on uniform fruit size and three maturities on peel color: S1 (fully developed fruit just before the onset of ripening), S2 (fruits in the onset of color change), and S3 (fruits in completely red in color). Lower temperature attributed to increase fruit weight loss (WL) and WL was higher in S2 than the other ripeness stages. The highest respiration rate and ethylene production was found at S2 fruit while those of fruit in green and red showed similar and remained lower level during storage. Electrolyte leakage (EL) was higher as storage temperature decreased. After 28 d storage, EL rates of fruits at $5^{\circ}C$ were 43, 36, and 17% in S1, S2, and S3 while those at $10^{\circ}C$ were 17, 19, and 14%, respectively. These results show that chilli pepper fruits are tended to lose more water at lower temperature partially associated with increased EL. Thus, threshold storage temperature must be considered for avoiding chilling during storage and for extending the storage life of fresh pepper fruits.

Sugar composition and glycemic indices of frequently consumed fruits in Korea (우리나라 다빈도 섭취 과일의 당 함량 및 혈당지수에 관한 연구)

  • Ryu, Ji-Hyun;Yim, Jung-Eun;Suk, Wan-Hee;Lee, Han-Song-Yi;Ahn, Hye-Jin;Kim, Young-Seol;Park, Cheon-Seok;Choue, Ryo-Won
    • Journal of Nutrition and Health
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    • v.45 no.2
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    • pp.192-200
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    • 2012
  • Fruits are generally recommended for a balanced meal, as they are good sources of vitamins, minerals, and fiber, which may improve blood glucose control. However, fruits have simple sugars with a wide glycemic index (GI) range. The purpose of this study was to analyze the sugar content and composition and to determine the glycemic indices of the most frequently consumed fruits in Korea, including apple, tangerine, pear, water melon, persimmon, grape, oriental melon, and peach. The sugar content and composition of the fruits were analyzed by high performance anion-exchange chromatography (Dinonex model DX-600). The GI of the fruits was measured in 13 healthy subjects (seven females and six males) after permission was received from the University Hospital institutional review board (KHU-IRB 1114-06). The subjects consumed 50 g of glucose as a reference and carbohydrate portions of eight fruits. Blood samples were collected at 0, 30, 60, 90, and 120 min after consuming the fruits. The GI values for the fruits were calculated by expressing the increase in the area under the blood glucose response curve for each subject. As a result, the total sugar contents of 100 g fruits were: grape (13.9 g), apple (12.3 g), persimmon (11.9 g), oriental melon (11.2 g), watermelon (9.3 g), tangerine (8.9 g), peach (8.6 g), and pear (8.3 g). The GI values of the fruits were as follows: GI value of peach ($56.5{\pm}14.17$), watermelon ($53.5{\pm}18.07$), oriental melon ($51.2{\pm}18.14$), tangerine ($50.4{\pm}15.16$), grape ($48.1{\pm}14.05$), persimmon ($42.9{\pm}18.92$), pear ($35.7{\pm}14.38$), and apple ($33.5{\pm}11.92$). These findings will help individuals choose fruit for controlling blood sugar.

Two Cyanidin compound from the Fruits of Acanthopanax divaricatus var. albeofructus

  • Hahn, Dug-Ryong;Park, Seon-Jin
    • Natural Product Sciences
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    • v.16 no.3
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    • pp.198-201
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    • 2010
  • Acanthopanax divaricatus var. albeofructus is one of the indigenous medicinal plant and the fruits of Acanthopanax spp. used as a remedial for "wipe out evil wind". Two anthocyanin were isolated from the fruits of Acanthopanax divaricatus var. albeofructus. Their structures were elucidated as cyanidin 3-lathyroside (1) and cyanidin 3-galactoside (2) by chemicophysical and spectroscopic analysis. And also, four chemical, syringin, chlorogenic acid, caffeic acid and acanthoside D were identified. Both anthocyanide were isolated for the first time from Acanthopanax species. cyanidin 3-lathyroside is one of the rare anthocyanin in natural resources.

Quality Evaluation of Raw Fruits and Vegetables (과실(果實) 및 채소(菜蔬)의 식품평가(品質評價))

  • Lee, Mie-Soon;Kim, Gun-Hee
    • Journal of Nutrition and Health
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    • v.17 no.2
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    • pp.108-112
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    • 1984
  • Quality characteristics of fruits and vegetables were investigated by physical, chemical and sensory evaluations. Firmness of tomato fruits tended to be reduced as their maturity or ripeness stage progressed. Sensory evaluation revealed that raw tomatoes were the most acceptable at pink or light red stage. Specific gravity was highly correlated with mealiness. Emphasis was placed on the basic study forming the foundation of national quality standards of raw fruits and vegetables.

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