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Changes of Chemical Components in Persimmon Leaves during Growth for Processing Persimmon Leaves Tea (감잎차 제조를 위한 감잎의 성장시기별 함유 성분의 변화)

  • Chung, Sun-Hwa;Moon, Kwang-Deok;Kim, Jong-Kuk;Seong, Jong-Hwan;Sohn, Tae-Hwa
    • Korean Journal of Food Science and Technology
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    • v.26 no.2
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    • pp.141-146
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    • 1994
  • As a foundational study for processing persimmon leaves tea, the physico-chemical characters were investigated in persimmon leaves from Chungdo Bansi, Sagoksi, Kyungsan Bansi and Hiratanenasi during growth. Flesh weights increased rapidly until the middle of May and then decreased slightly. Moisture contents decreased continuously from $79{\sim}81%$ at the beginning of May during growth. Water soluble tannin contents reached $1.55{\sim}2.25%$, maximum values at the middle of May and at the beginning of June, and increased again at the middle of July and then decreased. Contents of catechins, precursor of condensed tannin, indicated $12{\sim}27\;mg%$ at the middle of May and reached $17{\sim}34\;mg%$, maximum values at the middle of June. Contents of catechin were low in order of (+)-catechin, (-)-epicatechin, (-)-epicallocatechingallate, (-)-epigallocatechin and (-)-epicatechingallate. Sugars present in persimmon leaves were composed of sucrose, glucose, fructose, raffinose and mannitol. Sucrose increased continuously, glucose and fructose decreased during growth. Raffinose content was less than 0.1%. Glucose and fructose took more than 90% until the beginning of May, and then sucrose took up $60{\sim}80%$ of total sugar contents. Total vitamin C contents indicated maximum values at the middle of May and at the beginning of June in Chungdo Bansi, Sagoksi and Kyungsan Bansi, maximum vaule at the middle of July in Hiratanenasi. From the basis of these data It was suggested that proper period for picking persimmon leaves prior to processing persimmon leaves tea was from the middle of May to the beginning of June. Since maximum values for most of chemical components occurred at the middle of May and at the beginning of June and persimmon leaves thicken after the middle of June.

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Chemical Constituents and Flavonoids in Citrus Pressed Cake (감귤착즙박의 화학성분과 플라보노이드)

  • Yang, Young-Taek;Kim, Mi-Sil;Hyun, Kwan-Hee;Kim, Yong-Chol;Koh, Jeong-Sam
    • Food Science and Preservation
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    • v.15 no.1
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    • pp.94-98
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    • 2008
  • To search functional biomaterials of citrus pressed cake, the chemical constituents were analyzed Moisture content of citrus pressed cake varied slightly with sampling time. Moisture, non-nitrogen compounds, crude protein, crude fat, and ash of citrus pressed cake were 82.23% 16.94% 1.27% 2.5%, 0.58% (all w/w) on average, respectively. The chemical composition of citrus pressed cake was more similar to the peel than to the flesh of Citrus unshiu var: miyakawa. The pH, acid content, and pectin content were 3.57, 0.43% (w/w) and 1.49% (w/w), respectively. The vitamin C content of peel of Citrus unshiu var. miyakawa was 87.1mg/100g, and was higher than the 46.4mg/100g of citrus pressed cake. Total carotenoids of citrus pressed cake, and the peel and flesh of Citrus unshiu var. miyakawa, were 512.2mg/kg, 2,649.5mg/kg, and 199.4mg/kg, respectively. Therefore, citrus pressed cake may be utilized as a natural source of pectin, flavonoids and carotenoids. The major inorganic elements of citrus pressed cake were 201.3mg/100g of K, 47.9mg/100g of Ca, 19.4/100g of P, and 17.8/100g of Mg. The major free sugar contents of citrus pressed cake were 3.05% (w/w) fructose, 2.91% (w/w) glucose, and 4.94%(w/w) sucrose. Total free sugar was 9.91% (w/w), corresponding to 58.5% of 1be non-nitrogen compounds. The main flavonoids of Citrus unshiuwere narirutin, hesperidin, and rutin. Neohesperidin and hesperetin were also detected in trace amounts. Themajor flavonoids of citrus pressed cake were hesperidin and narirutin, and the content of hesperidin was 194.6mg/100g.

Quality characteristics of commercial liquid type yogurt in Korea (국내 시판 액상요구르트의 품질특성)

  • Lee, Ji Hyun;Park, Hye Young;Won, Ju In;Park, Hye In;Choi, In Duck;Lee, Seuk Ki;Park, Ji Young;Joe, Dong Hwa;Jeon, Yong Hee;Oh, Sea Kwan;Han, Sang Ik;Choi, Hye Sun
    • Food Science and Preservation
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    • v.24 no.6
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    • pp.865-870
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    • 2017
  • Yogurt is produced by fermentation of milk using bacteria known as "yogurt cultures". Most of these bacteria are probiotics such as Lactobacillus delbrueckii subsp. bulgaricus, Lb. rhamnosus, Streptococcus thermophilus, and Bifidobacterium. The domestic fermented milk market is increasing, and about 30 companies are producing yogurt. The purpose of this study was to analyze the quality characteristics of domestic commercial liquid yogurt. Total 30types of commercial yogurts were sampled and their physicochemicial properties, including pH, sugar content, acidity, viscosity, and microbial characteristics of lactic acid bacteria counts, were measured. Commercial liquid type yogurt showed a pH of 4.5, sugar content of 7.4-21.2%, total acid content of 0.4-0.9%, and viscosity of 0.1-250 cP. In terms of microbial populations, lactic acid bacteria counts were 7.2-11.3 log CFU/mL and anaerobic lactic acid bacteria counts were 8.0-11.5 log CFU/mL. The quality characteristics differed depending on the constituents of the sample and the microorganisms used. These results are related to the quality characteristics of yogurts and are useful for identifying new trends in the domestic fermented milk industry.

Comparative Analysis of Delivery Management in Various Medical Facilities (의료기관별 분만관리 양상의 비교 분석)

  • Park, Jung-Han;You, Young-Sook;Kim, Jang-Rak
    • Journal of Preventive Medicine and Public Health
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    • v.22 no.4 s.28
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    • pp.555-577
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    • 1989
  • This study was conducted to compare the delivery management including laboratory tests, medication and surgical procedures for the delivery in various medical facilities. Two university hospitals, two general hospitals, three hospitals, two private obstetric clinics, and two midwifery clinics in a large city were selected as they permitted the investigators to abstract the required data from the medical and accounting records. The total number of deliveries occurred at these 11 facilities between 15 January and 15 February, 1989 was 789 among which 606(76.8%) were vaginal deliveries and 183 (23.3%) were C-sections. For the normal vaginal deliveries, CBC, Hb/Hct level, blood typing, VDRL, hepatitis B antigen and antibody, and urinalysis were routinely done except the private clinics and midwifery clinics which did not test for hepatitis B and Hb/Hct level at all. In one university hospital ultrasonography was performed in 71.4% of the mothers and in one general hospital liver function test was done in 76.7% of the mothers. For the C-section, chest X-ray, bleeding/clotting time and liver function test were routinely done in addition to the routine tests for the normal vaginal deliveries. Episiotomy was performed in 97.2% of the vaginal deliveries. The type and duration of fluid infused and antibiotics administered showed a wide variation among the medical facilities. In one university hospital antibiotics was not administered after C-section at all while in the general hospitals and hospitals one or two antibiotics were administered for one week on the average. In one private clinic one pint of whole blood was transfused routinely. A wide variation was observed among the medical facilities in the use of vitamin, hemostatics, oxytocics, antipyreptics, analgesics, anti-inflammatory agents. sedatives. digestives. stool softeners. antihistamines. and diuretics. Mean hospital day for the normal vaginal deliveries of primipara was 2.6 days with little variation except one hospital with 3.5 days. Mean hospital day for the C-section of primipara was 7.5 days and that of multipara was 7.6 days and it ranged between 6.5 days and 9.4 days. Average hospital fee for a normal vaginal delivery without the medical insurance coverage was 182,100 Won for the primipara and 167,300 Won for the multipara. In case of the primipara covered by the medical insurance a mother paid 82,400 Won and a multiparous mother paid 75,600 Won. Average hospital fee for a C-section without the medical insurance was 946,500 Won for the primipara and 753,800 Won for the multipara. In case of the primipara covered by the medical insurance a mother paid 256,200 Won and a multiparous mother paid 253,700 Won. Average hospital fee for a normal vaginal delivery in the university hospitals showed a remarkable difference, 268,000 Won vs 350,000 Won, as well as for the C-section. A wide variation in the laboratory tests performed for a normal vaginal delivery and a C-section as well as in the medication and hospital days brought about a big difference in the hospital fee and some hospitals were practicing the case payment system. Thus, standardization of the medical care to a certain level is warranted for the provision of adequate medical care for delivery.

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The relationship of ready-to-eat cereal consumption with nutrition and health status in the Korean population based on the Korea National Health and Nutrition Examination Survey 2012 (한국인의 시리얼 섭취실태와 영양 및 건강상태와의 관련성 연구 - 2012년도 국민건강영양조사 자료를 이용하여 -)

  • Chung, Chin-Eun
    • Journal of Nutrition and Health
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    • v.48 no.3
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    • pp.258-268
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    • 2015
  • Purpose: The aim of this study was to explore the relationship of ready-to-eat cereal (RTEC) consumption with nutrition and health status. Examination of health status for this project included obesity, abdominal obesity, hypertension, hypertriglyceridemia, hypercholesterolemia, low-HDL-cholesterolemia, diabetes, anemia, and metabolic syndrome. Methods: Two groups, RTEC consumers and those who did not consume RTEC, were identified using 24-hour dietary recall data from the 2012 Korea National Health and Nutrition Examination Survey (KNHANES). Nutritional intakes and risk factors of the two groups were compared using covariates-adjusted statistical procedures. Statistical analyses were performed using SAS survey procedures, and strata, cluster, and weight were considered. Subjects of analysis of nutritional intake were between the ages of 1 and 75, and those considered in the risk factor analysis were between the ages of 19 and 75. Results: Results showed that 3.8% of the Korean population was RTEC consumers. Compared to the subjects who did not intake RTEC, RTEC consumers exhibited significantly higher intakes of calcium, thiamin, riboflavin, and vitamin C. It was also discovered that the percentage of people whose intakes were less than EAR decreased with RTEC consumption. RTEC consumption showed significant association with decreased systolic blood pressure, diastolic blood pressure, serum triglyceride, and serum total cholesterol. Consequently, prevalence of hypertension among RTEC consumers was significantly lower than that among non-consumers, and the odds ratio for hypertension was 0.19 after adjusting the models for covariates. Conclusion: Results of this study clearly suggest an association of RTEC consumption with improved nutritional status and cardiometabolic risk profile in Korean adults. Conduct of additional studies will be necessary in order to determine the nature of these relationships.

Comparison of Physicochemical Properties and Antioxidant Activities between Lentinula edodes and New Cultivar Lentinula edodes GNA01 (표고버섯(Lentinula edodes) 및 표고버섯 신품종 이슬송이버섯(Lentinula edodes GNA01)의 이화학적 특성 및 항산화 활성 비교)

  • Jang, Hye-Lim;Lee, Jong-Hun;Hwang, Myung-Jin;Choi, Youngmin;Kim, Haengran;Hwang, Jinbong;Nam, Jin-Sik
    • 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.

Nutritional composition, antioxidant capacity, and brain neuronal cell protective effect of cultivars of dried persimmon (Diospyros kaki) (품종별 곶감(Diospyros kaki)의 영양성분 분석, 산화방지 효과 및 뇌 신경세포 보호효과)

  • Kim, Jong Min;Park, Seon Kyeong;Kang, Jin Yong;Park, Sang Hyun;Park, Su Bin;Yoo, Seul Ki;Han, Hye Ju;Lee, Su-Gwang;Lee, Uk;Heo, Ho Jin
    • Korean Journal of Food Science and Technology
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    • v.50 no.2
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    • pp.225-237
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    • 2018
  • This study was conducted to compare nutritional analysis and neuroprotective effect of 5 cultivars of Diospyros kaki (Dungsi, Godongsi, Gojongsi, Gabjubaekmok, and Bansi). In nutritional analysis, three free sugars: sucrose, glucose, and fructose, and six fatty acids: tartaric acid, hexadecanoic acid, palmitic acid, oleic acid, octadecenamide, and octadecane, were detected. Potassium and phosphorus levels were the highest in inorganic component analysis, and glutamic acid and aspartic acid were the highest contents in amino acid analysis. Vitamin C was detected in all cultivars. Total phenolic content was the highest in Dungsi. Antioxidant activities such as ABTS (3-ethylbenzothiazoline-6-sulfonic acid), DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activities, FRAP (ferric reducing/antioxidant power), and MDA (malondialdehyde) inhibitory effect were the highest in Gabjubaekmok. Acetylcholinesterase inhibitory activity, cell viability, intracellular reactive oxygen species (ROS) accumulation, and lactate dehydrogenase (LDH) release were measured to confirm the neuroprotective effect in MC-IXC cells. Gabjubaekmok showed significant acetylcholinesterase (AChE) inhibition and neuroprotection.

The analysis of Nutrients in Artemisia capillaris Thunberg (사철쑥 (Artemisia capillaris Thunberg)의 영양성분 분석)

  • Lee, Hyoung-Ja;Hwang, Eun-Hee;Yu, Hyeen-Hee;Song, In-Sang;Kim, Chang-Min;Kim, Myung-Chul;Hong, Jin-Hwan;Kim, Dong-Sul;Han, Sang-Bae;Kang, Kil-Jin;Lee, Eun-Ju;Chung, Hyung-Wook
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.31 no.3
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    • pp.361-366
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    • 2002
  • A. capillaris Thunberg is often used as a medicinal herb. This analysis on A. capillaris Thunberg, showing its natural ingredients and nutritive elements, is to provide a better understanding of its content and help find more various ways of use. The ingredients of A. capillaris Thunberg are as follows : 14.12% of crude protein, 4.80% of crude lipid, 2.30% of crude ash, 8.10% of crude fiber, and the rest of the ingredients are vitamins and minerals. Minerals are 3295.02 mg% of K, 2787.01 mg% of P, 1436.01 mg% of Ca, 172.32 mg% of Mg, 21.23 mg% of Fe, 18.02 mg% of Mn, 8.11 mg% of Na, 1.24 mg% of Cu, and 0.002 mg% of Sn, and vitamins are 18602.00 ug% of $\beta$-carotene and 5.82 mg% of ascorbic acid. Fatty acids in A. capillaris Thunberg are of 23.86% of oleic acids (C18:1), 46.67% of saturated fatty acids, 33.40% of monousaturated fatty acids, and 19.83% of polyunsaturated fatty acids. Oleic acid (C18:1) is the most abundant fatty acid in A. capillaris Thunberg. P/S is 0.24. A. capillaris Thunberg contains about 20 kinds of amino acid. The total amount of amino acids is 1345.29 mg%, which can be divided into 79.95% of amino acids and 13.11% of essential amino acids. This 79.95% of amino acids consist of proline, tyrosine, asparagines, glutamic acid, and valine with amount of 438.58mg%, 310.20mg%, 120.30mg%, 118.66mg%, and 88.02mg% respectively. The essential amino acid is 176.83mg%. It is shown that A. capillaris Thunberg contatins various nutrients such as minerals, vitamins, fatty acids, and amino acids, so A. capillaris Thunberg can be regarded as a highly nutritious food.

Evaluation of the Nutrition Status and Metabolic Syndrome Prevalence of the Members according to the Number of Household Members based on the Korea National Health and Nutrition Examination Survey (2013-2014) (국민건강영양조사(2013-2014년) 자료에 근거한 가구원수별 구성원의 영양상태 및 대사증후군 유병율 평가)

  • Lee, Jin-Young;Choi, Soo-Kyong;Seo, Jung-Sook
    • Korean Journal of Community Nutrition
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    • v.24 no.3
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    • pp.232-244
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    • 2019
  • Objectives: This study evaluated the nutritional status and prevalence of metabolic syndrome of the people who participated in the KNHANES according to the number of household members. They were assessed by using information from the 2013~2014 Korea National Health and Nutrition Examination Survey (KNHANES). Methods: A total of 6,088 persons aged 19 years and over participated in 2013~2014 KNHANES, and they were classified into three groups according to the number of household members (single-person, two-person, three-person & over). The dietary behavior, nutritional status, health-related factors and the prevalence of metabolic syndrome of the subjects were investigated with using information from the survey questionnaires of KNHANES. The nutrient intake data of the subjects were obtained by the 24-hour recall method and this was analyzed for evaluating the nutrition adequacy ratio and the index of nutritional quality. The prevalence of metabolic syndrome among the subjects, and according to the study groups, was estimated using the blood and physical measurement data of the subjects. Results: As for EQ-5D index available for all the health states generated by the EQ-5D descriptive system, the single-person household member was the lowest among all the household types. The index of nutrition quality for protein, crude fiber, calcium, phosphorus, potassium, riboflavin and vitamin C in the single-person household was lower than that of the two-person or the three-person and over households (p<0.001). The mean adequacy ratio of single-person households was significantly decreased compared with that of the other types of households (p<0.001). The prevalence of metabolic syndrome was higher in the single-person households than that in the multiple-person households (p<0.001). Conclusions: These results showed that dietary behaviors, nutrition status and health status might be influenced by the number of household members. The results from this study would be useful for improving Korean people's dietary life and health status by implementing evidence-based, specialized intervention for the members of diverse types of households.

Food and nutrient intake status of Korean elderly by perceived anxiety and depressive condition: data from Korean National Health and Nutrition Examination Survey 2013~ 2015 (한국 노인의 주관적 불안·우울 상태에 따른 식품 및 영양소 섭취 실태 : 2013~ 2015년 국민건강영양조사 자료를 이용하여)

  • Kim, Da-Mee;Kim, Kyung-Hee
    • Journal of Nutrition and Health
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    • v.52 no.1
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    • pp.58-72
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    • 2019
  • Purpose: This study examined the food and nutrient intake of Korean elderly according to the anxiety and depressive condition using the data from the Korea National Health and Nutrition Survey (KNHANES) from 2013 to 2015. Methods: The participants were 3,504 elderly people over 65 years of age (1,523 in men and, 1,981 in women). The dietary information was analyzed using the 24-hour recall data. The anxiety and depressive state was assessed using the self-reported scale EQ-5D in the quality of life dimension. The subjects were divided into the anxiety depression group (AD) and non-anxiety depression group (NAD) according to their anxiety and depressive conditions. Results: In the male elderly, the AD group had a significantly lower education and economic level and higher proportion in living alone than the NAD group. The percentage of eating lunch and dinner alone in the male AD group was higher than that of the NAD group. The female AD group showed less a lower frequency of dinner than the NAD group. The male AD group had a lower consumption of total foods, fish and shellfishes, seaweeds, mushrooms, oils and fats, and seasonings than the NAD group. With regard to the nutrient intake, the male elderly NAD group had more sufficient nutrient intakes than the AD group. In particular, the daily intakes of dietary fiber, riboflavin, niacin, potassium and iron were significantly lower in the AD group. To compare with the nutrient density of the two groups, the vitamin C and niacin intakes were lower in the AD group than in the NAD group. Overall, the nutritional status of the male AD group was significantly lower than that of the NAD group. Meanwhile, the female elderly had showed a smaller difference in nutrient intake according to their anxiety and depressive condition. Conclusion: These results of this study show that more nutritional education and emotional support are needed to improve the nutritional status and health of the male elderly with anxiety or depression.