• Title/Summary/Keyword: acceptability rate

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Lactobacillus plantarum (KACC 92189) as a Potential Probiotic Starter Culture for Quality Improvement of Fermented Sausages

  • Ba, Hoa Van;Seo, Hyun-Woo;Seong, Pil-Nam;Kang, Sun-Moon;Kim, Yoon-Seok;Cho, Soo-Hyun;Park, Beom-Young;Ham, Jun-Sang;Kim, Jin-Hyoung
    • Food Science of Animal Resources
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    • v.38 no.1
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    • pp.189-202
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    • 2018
  • This study was conducted to evaluate the effects of fermenting temperature on the applicability of Lactobacillus plantarum for production of fermented sausages as starter cultures, and its applicable efficiency was also compared with those inoculated with commercial starter culture or non-inoculated control. The L. plantarum isolated from a naturally-fermented meat, identified by 16S rDNA sequencing and again identified by de novo Assembly Analysis method was used as a starter culture. Six treatments: 3 with L. plantarum at different fermenting temperatures (20, 25 and $30^{\circ}C$), and other 3 treatments (1 with commercial starter culture, 1 with its mixture with L. plantarum and 1 non-inoculated control) fermented under the same conditions ($25^{\circ}C$) were prepared. Results revealed that the fermenting temperature considerably affected the pH change in samples added with L. plantarum; the highest pH drop rate (1.57 unit) was obtained on the samples fermented at $30^{\circ}C$, followed by those at $25^{\circ}C$ (1.3 unit) and $20^{\circ}C$ (0.99 unit) after 4 days fermentation. Increasing the temperature up to $30^{\circ}C$ resulted in significantly lower spoilage bacteria count (5.15 log CFU/g) and lipid oxidation level in the products inoculated with L. plantarum. The sensory analysis also showed that the samples added with L. plantarum at $30^{\circ}C$ had significantly higher odor, taste and acceptability scores than those fermented at lower temperatures. Under the same processing condition, although the L. plantarum showed slightly lower acidification than the commercial starter culture, however, it significantly improved the eating quality of the product.

Knowledge and Attitudes of Bangkok Metropolitan Women towards HPV and Self-Sampled HPV Testing

  • Kittisiam, Thannaporn;Tangjitgamol, Siriwan;Chaowawanit, Woraphot;Khunnarong, Jakkapan;Srijaipracharoen, Sunamchok;Thavaramara, Thaowalai;Pataradool, Kamol
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.5
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    • pp.2445-2451
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    • 2016
  • Background: To evaluate knowledge of Bangkok women regarding HPV and self-sampled HPV testing, and their attitudes towards testing. Materials and Methods: Thai women who had lived in Bangkok for more than 5 years, aged 25-to-65 years old, were invited to join the study. Participating women were asked to a complete self-questionnaire (Thai language), with literate assistance as needed. The questionnaire was divided into 3 parts: (I) demographic data, (II) knowledge and (III) attitudes towards self-sampled HPV testing. Before proceeding to Part III of the questionnaire, a 15-minute educational video of self-sampled HPV testing was presented to all participants. Results: Among 2,810 women who answered the questionnaires, 33.7% reported that they did not know about HPV. The characteristic features of these women were older age (> 50 years), lower income (< 600 USD/month), unemployed status, and non-attendees at cervical cancer screening. Only small numbers of women (4.6%) responded that they had heard about self-sampled HPV testing. After having information, 59.6% would not use the self-sampled HPV testing as a method of cervical cancer screening (non-acceptance). Factors significantly associated with the non-acceptance were older age, lower income, having no knowledge about HPV or self-collected HPV testing, a perception that the testing was unreliable and a concern that they might not be able to perform it correctly. Conclusions: Nearly half and almost all Bangkok women did not know about HPV and self-sampled HPV testing, respectively. Approximately 60% of Bangkok women refused to do the self-sampled HPV testing. Significant negative attitudes were concerns that the testing would be unreliable and a lack of confidence to perform the procedure correctly. Education about HPV and self-sampled HPV testing, ease of the procedure, or the testing models may increase rate of acceptability or positive attitudes.

Quality Characteristics of Castella with Burdock (Arctium lappa L.) Powder (우엉 분말을 첨가한 카스텔라의 품질 특성)

  • Tae, Mi Hwa;Kim, Kyoung-Hee;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.2
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    • pp.215-221
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    • 2016
  • The study investigated the quality characteristics of white castella prepared with 0, 10, 20, and 30% burdock (Arctium lappa L.) powder. The specific gravity and weight of castella increased with higher burdock powder content. Height and baking loss rate of castella were not significantly different among the samples. The pH of castella decreased with increasing burdock powder content, whereas $^{\circ}Brix$ of castella increased. Hunter L and b values of crust increased, whereas a values decreased with addition of burdock powder. Hunter L values of crumb decreased, whereas a and b values of crumb increased. The hardness of castella increased upon addition of burdock powder, whereas fracturability, springiness, cohesiveness, gumminess, and resilience decreased. DPPH radical scavenging activity and total polyphenol contents increased significantly upon addition of burdock powder (P<0.05). In the sensory evaluation, crust color, crumb color, and flavor were highest in the control group. Moistness had the highest scores in castella containing 20 and 30% burdock powder. Chewiness and overall acceptability were higher in castella added with 10% burdock powder than in the control and other samples, but there were no significant differences among the samples.

Characteristics of Tofu (Soybean Curd) Quality Mixed with Enteromorpha intenstinalis Powder (파래 분말을 첨가한 두부의 품질특성)

  • Chung, Dong-Ok
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.5
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    • pp.745-749
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    • 2010
  • This study was conducted to investigate the quality characteristics of tofu (soybean curd) prepared with the addition of Enteromorpha intenstinalis powder (EIP). The moisture, crude ash, carbohydrate, crude protein, and crude lipid contents of the EIP were 6.04%, 24.09%, 39.68%, 28.25%, and 1.94%, respectively. The yield rate of the tofu did not differ significantly according to the level of added EIP, however there was a significant decrease in pH and a significant increase in acidity. The L and a values of the tofu color were decreased as the amount of EIP in the formulation increased, whereas the b values was increased. Furthermore, hardness and brittleness were significantly increased as the level of EIP increased. In terms of overall acceptability, the preferred tofu samples were the control and that of tofu mixed with 0.2% EIP addition group.

Characteristics of Dough Fermentation and Quality Characteristics of Bread Using Submerged-Culture Broth of Fomitopsis pinicola Mycelium (소나무잔나비버섯(Fomitopsis pinicola) 균사체 배양액을 이용한 반죽의 발효와 빵의 품질특성)

  • Lee Seung-Bae;Oh Seung-Hee;Lee Ye-Kyung;Kim Soon-Dong
    • Food Science and Preservation
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    • v.12 no.6
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    • pp.583-590
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    • 2005
  • Dough fermentation characteristics and quality characteristics of bread added with different concentration(0, 30, 40 and $50\%$ against water) of submerged-culture broth of Fomitopsis pinicola mycelium (CM) were investigated There were positive correlations between CM concentration and dough pH(r=0.98), acidity(r=-0.88), dough thickness(r=0.95) and dough strength(r=0.95). Baking loss rate was decreased with increasing of CM concentration. There was no significant difference between loaf volume index and CM concentration ($30\~40\%$, but the index of CM $50\%$ bread was lower than that of control. L* value of top crust in the CM $50\%$ bread was significantly lower than those of CM $0\~40\%$ bread, while the value of internal tissue was increased with increasing of CM concentration. In the CM $30\~40\%$ bread, hardness was lower, but there were no significant difference in cohesiveness, springiness, chewiness and brittleness compared with control. Appearance, color, taste, texture and overall acceptability of CM $30\~40\%$ bread were similar to those of control. In the results estimated by correlation analysis, the increased pH of the dough by adding CM allowed lowering hardness of the bread By adding CM in bread, retrogradations were delayed, and growth of mold was decreased during storage. In conclusion, the optimum concentration of CM in bread which showed anti-diabetic effect as well as not dropped quality characteristics were $30\~40\%$.

Quality Characteristics of Castella with Panax ginseng Sprout Powder (새싹인삼을 첨가한 카스텔라의 품질 특성)

  • Kim, Ki-Ppum;Kim, Kyoung-Hee;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.5
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    • pp.711-716
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    • 2016
  • The purpose of this study was to evaluate the quality of castella added with different concentrations (0%, 5%, 10%, and 15%) of Panax ginseng sprout powder. The specific gravity of castella made with 15% ginseng sprout powder was the highest (0.65), and baking loss rate was highest well. However, the height and weight of castella were highest in the control. The pH of castella decreased with increasing levels of Panax ginseng sprout powder, whereas sugar content of castella did not show significant differences. The Hunter L, a, and b values of crust decreased as the concentration of Panax ginseng sprout powder increased. The Hunter L and a values of crumb decreased as the concentration of ginseng sprout powder increased, whereas b values of crumb increased. The gumminess and chewiness of castella increased by addition of Panax ginseng sprout powder, whereas cohesiveness of castella decreased. The hardness and springiness of castella did not show significant differences. In the sensory evaluation, crust color, crumb color, aroma and moistness did not show significant differences among samples while sweet taste, and chewiness were highest in the control group. The overall acceptability of castella added with 5% Panax ginseng sprout powder was the highest. Therefore, the results suggest that castella added with 5% ginseng sprout powder could be helpful for improving physical quality and taste.

Quality Characteristics of Madeleine Added with Organic Ginseng (Panax ginseng C. A. Meyer) Leaf (유기농 인삼 잎을 첨가한 마들렌의 품질 특성)

  • Kim, Ki-Ppum;Kim, Kyoung-Hee;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.5
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    • pp.717-722
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    • 2016
  • The purpose of this study was to evaluate the quality of madeleine added with different concentrations (0, 1, 3, 5, and 7%) of organic ginseng leaves. The study results found that the pH and moisture of madeleine with control were higher than those of the samples. On the other hand, specific gravity of madeleine was highest at 7% leaf content (1.04). The loss rate of madeleine was not significantly different among the samples. The Hunter L, a, and b values of crust decreased as the concentration of organic ginseng leaves increased. The Hunter L and a values of crumb decreased as the concentration of organic ginseng leaves increased, whereas b values of crumb increased. The hardness of madeleine increased after addition of organic ginseng leaves, whereas adhesiveness, chewiness, gumminess, and cohesiveness of madeleine decreased. 2,2'-Diphenyl-1-picrylhydrazyl radical scavenging activity of madeleine was significantly elevated with increasing content of organic ginseng leaves (P<0.05). In a sensory evaluation, healthy image and color were highest at 3% leaf content, whereas moistness, softness, and chewiness decreased as the concentration of organic ginseng leaves increased. The flavor and overall acceptability of madeleine added with 3% organic ginseng leaves were higher than those of both control and other samples. Therefore, the results suggest that 3% organic ginseng leaves addition to madeleine could be helpful for improving physical quality and taste.

Quality Characteristics of Pound Cakes Prepared with Flowering Cherry (Prunus serrulata L. var. spontanea Max. wils.) Fruit Powder during Storage (버찌(Fruit of Prunus serrulata L. var. spontanea Max. wils.) 분말을 첨가한 파운드케이크의 저장 중 품질 특성)

  • Kim, Kyoung-Hee;Hwang, Hye-Rim;Yun, Mi-Hyang;Jo, Ji-Eun;Kim, Mi-Seon;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.38 no.7
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    • pp.926-934
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    • 2009
  • The study investigated the quality of pound cake prepared with various concentrations of cherry powder (obtained from ground fruit of Prunus serrulata L. var. spontanea Max. wils.). Pound cake was evaluated for their sensory property and physical quality stored for 10 days at $25^{\circ}C$. The pH of the batter decreased with rising cherry powder concentration. The specific loaf volume and height decreased (from 2.95 to $2.60\;cm^3/g$) with increasing in cherry powder. The baking loss rate of the pound cake tended to increased by $11.47{\sim}12.67%$, but with no significant differences. The lightness, redness, and yellowness values were significantly decreased with increases in cherry powder except for redness of pound cake crumb. As the concentration of cherry powder increased, the mechanical characteristics of the pound cake did not differ significantly. The hardness tended to increase, while adhesiveness and springiness decreased with increases in powder. The retrogradation degree of pound cake prepared with cherry powder was higher than the control but there were no significant differences. For the antioxidative activity measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, pound cake prepared with 10% and 15% added cherry powder showed high antioxidant activities. The pound cakes containing 10 and 15% cherry powder had acceptable sensory properties, such as flavor, taste, softness, moisture, and overall acceptability. The results exhibited that adding the cherry powder into the pound cake increased antioxidant activity with the highest quality improvement obtained by incorporating 10% (w/w) of cherry powder into the pound cake formula.

Quality Characteristics of Bread Containing Various Levels of Flowering Cherry (Prunus serrulata L. var. spontanea Max. wils.) Fruit Powder (버찌(Fruit of Prunus serrulata L. var. spontanea Max. wils.) 분말을 첨가한 식빵의 품질특성)

  • Yoon, Mi-Hyang;Jo, Ji-Eun;Kim, Da-Mi;Kim, Kyoung-Hee;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.9
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    • pp.1340-1345
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    • 2010
  • The study investigated on quality characteristics of pan breads prepared with 0, 1, 3 and 5% flowering cherry (Prunus serrulata L. var. spontanea Max. wils.) fruit powder. The pH of dough and bread decreased with the addition of flowering cherry fruit powder, whereas the weight of bread increased. The volume, specific volume and baking loss rate of the breads decreased as flowering cherry fruit powder levels increased. The volume of dough during fermentation of bread containing flowering fruit cherry powder was smaller than those of the dough without flowering cherry fruit powder. Lightness (L) and yellowness (b) of breads crumb and crust color were decreased as the concentration of flowering cherry fruit powder increased; however, the redness (a) was increased. In the texture analyzer measurement, hardness and chewiness of the breads were significantly increased by adding the powder but cohesiveness was decreased. There was no significant difference in springiness. The antioxidative activity measured by DPPH radical scavenging activity of bread increased as the concentration of flowering cherry fruit powder increased. The bread containing 3% flowering cherry fruit powder has acceptable sensory properties. such as color, smell, taste, chewiness, texture and overall acceptability. The results exhibited that adding the flowering cherry fruit powder into the bread increased antioxidant activity, and the highest quality improvement was obtained by incorporating 3% flowering cherry fruit powder into the bread formula.

Quality Characteristics of Cookies with Bamboo Leaves Powder (대나무 잎 분말을 첨가한 쿠키의 품질 특성)

  • Lee Jun-Youl;Ju Jong-Chan;Park Hye-Jin;Heu Eun-Shil;Choi Sun-Young;Shin Jung-Hye
    • The Korean Journal of Food And Nutrition
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    • v.19 no.1
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    • pp.1-7
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    • 2006
  • In this study we investigated physicochemical and sensory characteristics of cookies with various levels(0, 3, 6, 9, 12%) of bamboo leaves powder. Spread ratio of control and 3% added sample showed significantly higher value than $6{\sim}12%$ bamboo leaves powder added samples. Loss rate of control showed significantly higher value than other samples. The 'L' and 'b' value was significantly lowed by the addition of bamboo leaves powder. The 'a' value of bamboo leaves powder added samples were significantly lower than control. Share force was increased in proportion to bamboo leaves powder addition level, which had no significance between control and 3% added sample. But Share force showed significantly high level in 9% and 12% added samples. The result of sensory evaluation for color showed the highest preference in 9% added sample and the lowest preference in 3% added sample. Preference of taste was the highest in 9% added sample, hardness was lower by bamboo leaves addition. Overall acceptability was higher in 6% and 9% added samples than others, but they had no significance.