• Journal of dental hygiene science
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• v.22 no.2
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• pp.115-125
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• 2022

Background: In the dental hygiene curriculum, efforts are being made to introduce an integrated curriculum based on the competency of a dental hygienist. Because there is a connection and overlap in learning contents between Dental Nutrition and Oral Biochemistry, which are basic dental hygiene subjects, it is possible to integrate these two subjects. This study aims to derive Nutritional Biochemistry as an integrated curriculum for Dental Nutrition and Oral Biochemistry, and to develop learning goals and competencies for Dental Nutritional Biochemistry. Methods: The learning contents of the integrated curriculum were composed by referring to the contents of the Dental Nutrition and Oral Biochemistry textbooks, and learning goals were derived from the learning contents. Moreover, competency was developed by analyzing the duties of a dental hygienist that can be performed through the learning goals. The Delphi survey was conducted twice to verify the content validity ratio (CVR) of the competence and the learning goal of the integrated curriculum. Results: In the first Delphi survey, the CVR for two competencies was 0.56 or higher. Moreover, it was revised based on expert's opinions, and as a result of the second Delphi survey after the revision, the CVR was either increased or maintained. Eighty-five learning goals were derived by referring to the textbook. According to CVR and expert opinions, after the first Delphi survey, the number of learning goals was reduced to 69. After the second Delphi survey, 68 learning goals were finally derived. Conclusion: The development process of the integrated curriculum conducted in this study can be utilized for integration between subjects in basic dental hygiene.

• Journal of the East Asian Society of Dietary Life
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• v.23 no.6
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• pp.768-777
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• 2013

Physicochemical characteristics and analysis of functional constituents of mulberry (Morus alba L.) fruit juices were investigated according to four different mulberry cultivars, including iksuppong, daeseongppong, cheongilppong and kwasangppong. Among the four mulberry cultivars examined, the small-sized cheongilppong had higher soluble solid content and lower titratable acidity, whereas the big-sized daeseongppong had higher titratable acidity and lower soluble solid content than other mulberry cultivars. Cheongilppong had higher contents of fructose and glucose, while daeseongppong had higher contents of citric and malic acids than the other mulberry cultivars. Kwasangppong had higher contents of two anthocyanins, cyanidin 3-glucoside and cyanidin 3-rutinoside, while cheongilppong had lower contents of two anthocyanins than the other mulberry cultivars. Daeseongppong had higher contents of resveratrols, flavonoids and moracin, whereas cheongilppong had higher levels of protocatechuic, chlorogenic and caffeic acids than the other mulberry fruits. Of the four mulberry cultivars, daeseongppong and cheongilppong had higher contents of GABA and DNJ, respectively, than the other mulberry cultivars. These results provide useful information to food technologists for the development and standardization of high quality mulberry juices as well as their processed foods.

• Preventive Nutrition and Food Science
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• v.22 no.3
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• pp.237-240
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• 2017

Amygdalin contents of the seeds, endocarps, and mesocarps from three peach cultivars (i.e., Stone Peach, Hikawa Hakuho, and Bakhyang) were measured at three stages of fruit development (stone-hardening, fruit enlargement, and ripening). The peach samples were dried and defatted with a Soxhlet apparatus, reflux extracted with methanol, and analyzed using reverse phase high-performance liquid chromatography. During all fruit development stages, the amygdalin contents in the seeds were higher than those in the endocarps and mesocarps. The amygdalin contents of the Stone Peach were comparatively higher than the Hikawa Hakuho and Bakhyang (P<0.05). Further, the amygdalin contents during ripening were very low or not detected. Overall, the amygdalin contents of the three peach cultivar samples (seed, endocarp, and mesocarp) increased until the fruit enlargement stage and either remained constant or decreased during ripening.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.4
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• pp.614-617
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• 1994

This study was undertaken to determine the changes in amino acids, amylose and mineral contents of Jeolpyons(Korean rice cake) supplemented with various levels of roasted soybean flour (RSF). Amino acids content of Jeolpyons increased as RSF content increased. Especially the contents of total essential amino acids of Jeolpyon supplemented with RSF(5, 10, 15 and 20%) increased 1.22 to 2.74 times greater than those of the ocntrol. Amylose, which is related to retrogradatin effect on rice products decreased about 0.9 to 4.7% by increasing the soybean flour contents. Mineral contents by jeolpyon containing RSF increased as RSF contents increased.

• Journal of Nutrition and Health
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• v.22 no.3
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• pp.149-158
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• 1989

To investigate the nutritional quality of packaged meals produced by packaged meal manufactures, a nutritional evaluation was conduced. Samples examined in this study were 95 Products which composed of 86 Doraks, 7 Kimplabs and 2 Yubuchopabs Produced in packaged meal manufactures in Seoul City and Kungki-do province The distribution of food groups showed that amounts of animal foods were abound, but amounts of green vegetables, limited in Dosirak comparing to one meal RDA levels. Amounts of meats, fishes and shells are increased more than amounts of egged and legumina with increase of price of Dosirak. The total kinds of food and the amounts of certain food in Kimpab and Yubuchopab were lower than Dosirak. The energy and protein contents of Dosirak were found to be higher than one meal RDA levels, with exception of protein content in Dosirak of the price 1000 won. The contents of energy and protein in Kimpab and Yubuchopab are less than one meal RDA levels. Calcium and iron contents in Dosirak, and calcium content in Yubuchopab were present in excess compared to the one meal RDA. However, In Kimpab, calcium and iron contents were lower than the one meal RDA. On the whole, vitamin contents of Dosirak were sufficient whereas vitamin contents of Kimpab and Yubuchopab were lower than the one meal RDA. Number of side dishes used in Dosirak were 6-23 items depending on prices. Guidelines were suggested for effective nutritional quality control of packaged meals.

• Journal of the Korean Society of Food Science and Nutrition
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• v.27 no.3
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• pp.471-476
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• 1998

The NO3 contents and organophosphorus pesticide residues in edible part of vegetables cultivated by a conventional or an organic farming methods were determined. The NO3 contents of vegetables cultivated by the organic farming method were between 120ppm and 4,523ppm, whereas its contents of vegetables cultivated by the conventional farming method were between 89ppm and 1,575ppm. Fifty two percent of vegetables cultivated by hte organic farming method accumulated NO3 content over than 2,000ppm, whereas 82% vegetables cultivated by the conventional farming method accumulated NO3 content below than 1,000ppm. The NO3 contents of lettuce dependent on the cultivation method obviously. The NO3 contents of lettuce cultivated by a hydroponic farming method were between 4,800 and 6,500ppm, whereas those cultivated by the conventional method were between 630 and 750ppm. The organophosphorus pesticide residues in edible part of vegetables cultivated by the conventional or the organic farming methods were not detected. The NO3 contents in edible part of vegetables cultivated by the organic farming method should be considered as one of several parameters to judge a real safe vegetable to be certified by goverment.

• Korean Journal of Human Ecology
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• v.24 no.5
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• pp.713-723
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• 2015

This study was performed to investigate the physicochemical activities such as mineral contents, antioxidantant activities, ${\partial}$-glucosidase activity, and angiotensin I-converting enzyme(ACE) inhibitory effect of Dangmyon (starch vermicelli) prepared with mulberry leaves powder. Mulberry leaves powder was added in ratio (w/w) of 0% (CON), 0.5% (MD1), 1.0% (MD2), 1.5% (MD3), and 2.0% (MD4), and then mineral contents, total polyphenol contents, antioxidant, antidiabetic, and antihypertensive activities of the Dangmyon were measured. The mineral contents were significantly increased by the addition of mulberry leaves powder (p<0.001). The total polyphenol contents and antioxidant activities of Dangmyon were significantly increased by the addition of mulberry leaves powder (p<0.05). In terms of antidiabetic and antihypertensive activities showed MD1~MD4 samples higher contents of ACE and ${\alpha}$-glucosidase compared to control (p<0.05). Our findings suggest that addition of mulberry leaves powder to Dangmyon may improve the effects of anti-oxidation, anti-DM, and anti-hypertension and provide health benefits of consumers.

• Journal of the Korean Society of Food Science and Nutrition
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• v.27 no.1
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• pp.29-34
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• 1998

This study was investigated to know changes of the cell wall components, cell wall degrading enzyme activities and contents of soluble protein of strawberry during ripening and softening. The contents of water soluble substances were slightly increased during ripening, but the contents of alcohol-insoluble substances were not changed. The contents of pectin were not changed at green mature and turning stage, while decreased after mature stage. The contents of alkali-soluble hemicellulose and cellulose were increased during ripening and softening. The contents of water-soluble and saltsoluble protein were not changed, but the content of cell wall protein was slightly decreased during ripening. The content of total protein was increased at turning stage, it is not changed after turning stage. $\beta$-Galactosidase activity was increased during ripening, and pectinmethylesterase activity was decreased at turning. Phenylalanine ammonia-lyase activity was changed up to mature stage, but decreased at overripening stage. Polygalacturonase and cellulase activities were not detected at all of ripening stages.

• The Korean Journal of Food And Nutrition
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• v.7 no.4
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• pp.274-283
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• 1994

To provide the efficient application scheme of buckwheat dietary fiber and basic information of seed germination, buckwheat(Fagopyrum esculentum Moench) was germinated at 10$^{\circ}C$ for 7 days and the contents and composition of the total dietary fiber(TDF), insoluble dietary fiber(IDF), soluble dietary fiber(SDF) wire examined at 24 hour intervals. The TDF content in ungerminated seeds was 24.86o on dry weight basis. It decreased for the 1st day of germination, but gradually increased for 7 days afterwords. The contents of IDF and SDF in ungerminated seeds were 22.05, 1.42% respectively. The IDF and SDF contents decreased in the initial stage of germination, but then gradually increased. The composition of the IDF and SDF in the TDF during the germination period showed different tendencies. The IDF decreased with germination time until 5 days and then increased. The SDV increased until 5 days and then decreased gradually. The TDF contents obtained by AOAC method were generally higher than those obtained by Prosky method. The TDF contents obtained by the two method, however, were very closely correlated (r=0.9966, p< 0.01) The IDF(X1) and SDF(X2) showed the significant regression equation(p<0.01) with the root length(Y). The equation was Y: -12.6681+0.5089${\times}$ 1 $\div$ 0.6022Xa and R2 was 0.968.

• Journal of the Korean Society of Food Science and Nutrition
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• v.26 no.6
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• pp.1140-1146
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• 1997

Storage stability of ginger paste product was investigated from the standpoint of the inhibition of nonenzymatic browning and loss of gingerol contents. For the experimentations, control, 0.04% of N-acetyl-L-cysteine in ginger paste(NAcCys), and combination treatment of NAcCys, 0.92 of water activity and 6.30 of pH in ginger paste (mixed treatment) were stored at 3$0^{\circ}C$ for 40 days and analyzed for browning and gingerol contents. In addition the changes in sugars, organic acids, ascorbic acids, amino acids, and sensory quality were determined. The results revealed that the mixed treatment agent was effective in preventing both nonenzymatic browning and loss of gingerol contents. The inhibition by combination treatment might be resulted from the control of radical formations by sulfhydryl groups of NAcCys and the increase of diffusion resistance in lower water activity. Browning development and total gingerol contents were found to be correlated to some physicochemical characteristics of ginger paste; that is, browning development to amino acid and color value in sensory evaluation, and total gingerol contents to flavor in sensory evaluation.