• Journal of the Korean Society of Tobacco Science
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• v.32 no.1
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• pp.1-11
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• 2010

This study was carried out to investigate the influence of stem materials such as black stem on the quality of expended stem and cigarettes. Normal and black stem were separated by tobacco scan and then, those stems were expanded after treating with their respective stem casings. Total sugar, ether extract, ash contents and pH were slightly low in black stem compared with normal stem. However, the number of bacteria and fungi ratio were remarkably higher in black stem than that of normal stem. As compared with normal stems, ratio of rushed stem in rolled process was approximately 2 times higher in black stem with the consequency that the filling capacity of black stem was decreased. The ratio of large particles (> 3.35 mm) of expanded black stem showed decreasing tendency and small particles rate (1.40 mm <) was increased compared with normal stem. When expanded stems were prepared using stem containing 5 levels (0, 10, 20, 30 and 100 %) of black stem, the filling capacity was decreased and static burning rate was significantly decreased with increasing expanded black stem rate. However, the weight and hardness of cigarettes were slightly increased with increasing expanded black stem rate. The contents of phenol compounds, aromatic amines and carbonyl compounds in the cigarette mainstream smoke from the cigarette which was manufactured with various ratio of expended black stem, were gradually increased with increasing expanded black stem rates. Also, the cytotoxicity and the mutagenicity of the TPM were significantly increased with increasing expanded black stem rate. The sensory test result showed that cigarettes blended with 10 and 30 % level of black stem rate was exhibited significantly high sensory attributions such as off-taste, impact, hotness, bitterness and irritation as compared with cigarette blended with normal stem, while smoke fullness and cleanness were slightly decreased with increasing expanded black stem rates. The number of brown spots on cigarettes paper was 2 to 3 times high in cigarettes containing black stem than that of cigarette made from normal stem and were high with increasing black stem rate. The overall assessment in this study suggest, that black stem should not be used because of bad quality of expanded stem and high toxicological activity of cigarette mainstream smoke.

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1370-1382
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• 2021

Previous studies have been conducted on domestic materials as a single extract. Research on complex mixtures for maximizing plant characteristics by individual extraction and potential interference with effects is insufficient. Therefore, this study confirmed the GC-MSD according to the extraction of essential oils for Agastache rugosa O. Kuntze(AR), Pinus densiflora Sieb. et Zuccarini(PD), Curcuma longa, Curcuma domestica(CC), Zingiber officinale Roscoe(ZR), Foeniculum vulgare Miller(FV), and Citrus medica L. var. sarcodactylis Swingle(CS). The cytotoxicity, antioxidant, and anti-inflammatory properties of the blending oil were confirmed to confirm its potential as a cosmetic material. As a result of analyzing GC-MSD aroma components, the main components were estragole of AR, à-Pinene for PD, Zingiberene for CC and ZR, Anethole from FV, and D-Limonene for CS. At a concentration of 100 uL/mL with no confirmed cytotoxicity, NO production was inhibited by 70.62%, DPPH radical scavenging activity was 64.03%, and ABTS radical scavenging activity was 89.55%. Through this, blended essential oil suggests the possibility of useful application as a raw material with antioxidant and anti-inflammatory effects in the cosmetic and food industries.

• The Korean Journal of Applied Statistics
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• v.32 no.6
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• pp.851-865
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• 2019

Discovering various features from one time series is complicated. In this paper, we introduce a multi aggregation prediction algorithm (MAPA) that uses the concepts of temporal aggregation and combining forecasts to find multiple patterns from one time series and increase forecasting accuracy. Temporal aggregation produces multiple time series and each series has separate properties. We use exponential smoothing methods in the next step to extract various features of time series components in order to forecast time series components for each series. In the final step, we blend predictions of the same kind of components and forecast the target series by the summation of blended predictions. As an empirical example, we forecast traffic accident counts using MAPA and observe that MAPA performance is superior to conventional methods.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.12
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• pp.1477-1485
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• 2011

Dyeability and colorfastness of the blended knits of cotton/rayon (40/60; C/R) and wool/tencel (10/90; W/T) are examined using the natural dyestuff ($Pinux^{TM}$) manufactured from Pinus radiata pine bark extract. In addition, pre-treatments (such as bleaching, mercerization and cationization) are performed to improve dyeability and colorfastness. The $Pinux^{TM}$ powder dyestuffs produced by Pinux Co., Ltd. are used as dyestuffs and their properties are examined for dyeing concentration (0.5-2% (owb)), dyeing time (30-120 minutes) and dyeing temperature (30-$90^{\circ}C$). Dyeability is evaluated with K/S value at 400nm, which is the maximum absorption wavelength for $Pinux^{TM}$. The results show the dyeability of W/T sample containing protein fiber with $Pinux^{TM}$ is superior to all cellulose fiber C/R. A concentration of dyestuff greater than 1.5% (owb), dyeing time 120 minutes and dyeing temperature of $90^{\circ}C$ are the most optimized conditions. It shows that the dyeability of C/R and W/T samples are high in the condition of an acid-dyeing bath and that dyeability highly declined in alkaline bath due to the instability of the proanthocyanidin pigment. After analyzing the effect of bleaching, mercerizing and cationizing (as pre-treatments on dyeability) it was concluded that the dyeability of the C/R sample was enhanced by mercerization but no significant effect by cationization. However, the simultaneous treatment of cationizing and dyeing resulted in far improved dyeability compared to dyeing after cationizing pre-treatment. As for the W/T sample, the effect of cationization was more prominent than the C/R sample. Colorfastness to color changes in the control W/T sample was higher than that of C/R's level 1-2, and it increased to Level 2 when bleaching pre-treatment was given and when a simultaneous cationizing treatment was adopted to the dyeing process. Colorfastness to light in W/T control sample resulted in Level 3 and further increased to an excellent Level of 4 with bleaching and simultaneous cationizing during dyeing process.

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.381-392
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• 2020

This study is purposed to check up the natural 12 kinds of herbal extracts suitable for hangover and based on the results of contents of phenolic compounds, ABTS radical scavenging activity, alcohol dehydrogenase (ADH), and acetaldehyde dehydrogenase (ALDH). Selected 8 kinds of herbal extracts are blended according to the efficacy and the pearson's correlation between each content and activity. C. sinensis var. sinensis, P. densiflora Gnarl and P. lobata Ohwi showed excellent ADH activity, P. lobata Ohwi had a strong correlation between the content and efficacy, and C. sinensis var. sinensis, P. densiflora Gnarl had a negative correlation. Through the ADH and ALDH activity test of F.1 to F.7, the F.7 showed the highest synergic effect and selected as an optimal formulation. F.7 intake-group, the breath alcohol concentration was significantly reduced to 58% after 30 minutes and 27% after 120 minutes, compared to right after alcohol consumption. After alcohol consumption, there was a significant improvement effect (p<0.05) in tired and thirst in the intake group compared to the non-intake group.

• Herbal Formula Science
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• v.25 no.4
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• pp.553-574
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• 2017

The purpose of this study is to find out effects of prescriptions according to the formula, manipulation of Rhei Rhizoma, configuration. The following results were reached through investigations on the prescriptions using Rhei Rhizoma as a main component. Objectives : Analysis of prescriptions According to the formula : Liquid Extract Prescriptions were used widely on three parts to treat fever and damp heat in the interior organs. Powder Prescriptions were taken with hot water, thin porridge, tea etc. to treat damp heat, congestion of phlegm, acute episodes. Liquid Mixed Pill treat congestion of QI, damp heat, phlegm. Honey Mixed Pill treat accumulated fever, distension, acute excessive fever. Paste Pill treat blood stagnation, excessive toxic-fever, epidemic diseases. External Application treat inflammation by injury, swelling due to severe fever by internal damage. Methods : Analysis of prescriptions According to the manipulation of Rhei Rhizoma : Prescriptions including Liquor processed Rhei Rhizoma treat excessive toxic-fever, congestion of phlegm, blocking orifices on the upper side. Steamed Rhei Rhizoma strengthen effects of making evacuate and cooling of heat. Processed Rhei Rhizoma with vinegar strengthen effects of removing blood stagnation by activating blood movement, releasing gathering. Results : Analysis of prescriptions According to the Composition of Rhei Rhizoma : 41% of the total prescriptions were on the area of less than 20%. In case of lower groups show increased frequency of combination with Pharbitidis Semen, Persicae Semen, Scutellariae Radix and manipulation of baking, steaming, roasting. In case of higher groups show increased frequency of treating excess syndrome, critical illness, acute severe illness, and using proccesed Rhei Rhizoma with vinegar. Treatment of damp heat on the liver and gallbladder, disorder of the spleen and stomach is done mostly by prescriptions on the area of less than 30%. Conclusions : Rhei Rhizoma-Coptidis Rhizoma pair treat damp heat, heat toxins in blood, and Constipation caused by excessive heat. Rhei Rhizoma-Glycyrrhizae Radix pair relieve effects of Rhei Rhizoma passing blocked feces, removing the poison, activating blood movement, releasing gathering with the effects of Glycyrrhizae Radix relaxing tension by harmonizing Middle. Rhei Rhizoma-Magnoliae Cortex pair are used to treat damp heat in middle area, excessive heat in the stomach and intestine. Rhei Rhizoma-Pharbitidis Semen pair act on both blood system and QI system treating edema, damp, stagnation, heat toxins, feces. Rhei Rhizoma-Persicae Semen pair treat blood stagnation with fever on blood system.

• Journal of Life Science
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• v.27 no.6
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• pp.702-707
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• 2017

Insects and their extract have been traditionally used as medicinal resources in Asia. Recently, Gryllus bimaculatus and the larva of Tenebrio molitor, Protaetia brevitarsis, and Allomyrina dichotoma were enlisted as general food ingredients by Korean Ministry of Food and Drug Safety. As the interest in these insects is growing, the detailed investigation is needed for the standardization of suitable and safe rearing techniques. This survey was conducted via personal interviews about edible insect rearing farms in Korea. The basic feed is fermented oak sawdust for P. brevitarsis and A. dichotoma and wheat bran for T. molitor. The various feed additives are blended with each farm's own recipes. The overall growth condition, including sawdust fermentation method, feeding period, and rearing density, varies among the investigated farms. It seems that weight of last instar larva was correlated with the rearing density and duration of the larval period. The heavy metal contents were analyzed after 48 hour starvation and they were very small amount or not detected in investigated insects. We believe that the present data will contribute to develop and standardize the safe rearing techniques of edible insects in Korea.

• Korean Journal of Food Science and Technology
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• v.30 no.1
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• pp.151-160
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• 1998

Tangerine peel is mostly discarded as waste in citrus processing. However, tangerine peel contains besides dietary fibers bioflavonoids such as naringin and hesperidin which act as antimicrobials and blood pressure depressants, respectively. A continuous membrane separation process was optimized for the production of bioflavonoids relative to feed flow rate, transmembrane pressure, temperature, and pH. The tangerine peel was blended with 7.5 times water volume and the extract was prefiltered through a prefiltration system. The prefiltered extract was ultrafiltered in a hollow fiber membrane system. The flux and feed flow rate didn't show any apparent correlation, but we could observe a mass-transfer controlled region of over 8 psi. When temperature increased from $9^{\circ}C\;to\;25^{\circ}C$, the flux increased about $10\;liters/m^2/min\;(LMH)$ but between $25^{\circ}C\;and\;33^{\circ}C$, the flux increased only 2 LMH. At every transmembrane pressure, the flux of pH 4.8 was the most highest and the flux at pH 3.0 was lower than that of pH 6.0, 7.0, or 9.0. Therefore, the optimum operating conditions were 49.3 L/hr. 10 psi, $25^{\circ}C$, and pH 4.8. Under the optimum conditions, the flux gradually decreased and finally reached a steady-state after 1 hr 50 min. The amount of dietary fibers in 1.0 g retentate in each separation step was analyzed and bioflavonoids concentration in each permeate was measured. The contents of total dietary fiber in the 170 mesh retentate and soluble dietary fiber in the prefiltered retentate were the highest. Naringin and hesperidin concentration in the permeate were $0.45{\sim}0.65\;mg/g\;and\;5.15{\sim}6.86\;mg/g$ respectively, being $15{\sim}22$ times and $79{\sim}93$ times higher than those in the tangerine peel. Therefore, it can be said that PM 10 hollow fiber membrane separation system may be a very effective method for the recovery of bioflavonoids from tangerine peel.

• The Korean Journal of Food And Nutrition
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• v.28 no.4
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• pp.666-675
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• 2015

This study was carried out to develop rose sparkling wine with reed root. To make the base wine with reed root extracts, we first blended wild grape wine with reed root extracts (1:9 v/v) and fermented the mixture for 14 days at $20^{\circ}C$. The pH of the control and the rose base wine with reed root extract (RWE) decreased with increasing fermentation time, but acidity showed the opposite behavior. The control and RWE had $7.33^{\circ}Brix$, and $6.90^{\circ}Brix$, respectively at 14 days, with higher sugar content in the control than in RWE. The alcohol content increased as the fermentation progressed and was higher in RWE than in the control at 14.20% and, 13.83%, respectively. Regarding the color, the lightness decreased as the fermentation progressed. The total polyphenol contents of the control and RWE were 29.19 mg/100 mL and, 34.97 mg/100 mL. The flavonoids decreased as the fermentation progressed. The ABTS radical scavenging activity of the control and RWE were 44.26% and, 64.37% while the DPPH radical scavenging activity showed similar results in the control and RWE. In the second test, we added RWE to base wine, because yeast rearing was inhibited at 14% alcohol content. We made sparkling rose wine with 4 strains and fermented the wine for 8 days at $20^{\circ}C$. The pH of the samples decreased with increasing fermentation time, but the acidity showed the opposite behavior. The $^{\circ}Brix$ decreased and the alcohol content increased with increasing fermentation time. The pressure in sample A was $4.30kgf/cm^2$ at 8 days which was the highest in the samples. In the sensory evaluation, the color, flavor, softness and overall acceptability of the control was higher than the other samples. In conclusion, Saccharomyces cerevisiae Vitilevure Quartz was overall the most suitable rose sparkling wine.