• 한국식품조리과학회지
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• 제16권3호
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• pp.260-266
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• 2000

The objective of this study was to evaluate the quality characteristics of Dotoridduck (acorn rice cake) prepared by the addition of acorn jelly powder(0%, l0%, 20%, 30%, 40%). In the results of sensory evaluation for Dotoridduck, the L value decreased and a and b values increased as the addition of acorn jelly powder increased. The hardness and chewiness were evaluated better as the amount of acorn jelly powder decreased. The bitterness increased as the amount of acorn jelly powder increased. Dotoridduck with 10% and 20% acorn jelly powder showed the highest acceptance. In the mechanical evaluation, control samples with 0% acorn jelly powder showed higher scores in the hardness, cohesiveness, gumminess, and chewiness than the ones with acorn jel]y powder, however, the ones with 40% acorn jelly powder were the highest in the adhesiveness and springiness. The fracturability was higher in the samples with 10% acorn jelly powder.

• 대한영양사협회학술지
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• 제25권2호
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• pp.105-114
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• 2019

This study examined the quality characteristics of brown rice Sulgidduk containing acorn powder and the optimal mixing rate (0%, 5%, 10%, and 15%). The moisture contents of brown rice Sulgidduk increased with increasing amount of acorn powder. The DPPH free radical scavenging activities (16.15%~28.06%) and ABTS free radical scavenging activities (22.98%~42.81%) of the brown rice Sulgidduk increased with increasing acorn powder content. The L value of the Hunter's color value decreased with increasing amount of acorn powder. The hardness and chewiness of brown rice Sulgidduk increased with increasing amount of acorn powder. The brown rice Sulgidduk containing 10% acorn powder showed the highest score with regard to the sensory characteristics. These results suggest that the most desirable amount of acorn powder is 10% and the addition of acorn powder could contribute positively toward the quality characteristics of brown rice Sulgidduk.

• 생약학회지
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• 제38권1호
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• pp.90-94
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• 2007

This study was examined the chemical components and total phenol content in acorn powders of Korea and China. Korea acorn powder produced from consists of 6.85% crude protein, 3.57% crude fat and 3.33% crude ash. China acorn powder consists of 1.83% crude protein, 0.41% crude fat and 0.40% crude ash. The composition of unsaturated fatty acid of Korea acorn powder was slightly lower than China acorn powder, but there was no significant difference. The amino acid content of Korea acorn powder was higher than that of China acorn powder. Total phenol content of that Korea acorn powder was 20 mg/g, and that China acorn powder was 3.2 mg/g.

• Journal of Nutrition and Health
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• 제37권3호
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• pp.169-175
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• 2004

This study was performed to investigate the effect of acorn supplementation on the lipid profile and redox antioxidant enzyme activities in obese rat. Obesity in the rats was induced by feeding diet contained 10％ lard and 0.5％ cholesterol for 4 week. After 4 weeks, rats were divided into the following 5 groups; high fat diet (Control), high fat diet plus 10％ Acorn powder (APlO％), high fat diet plus 20％ Acorn powder (AP20％), high fat diet plus 0.2％ Acorn extract (AE0.2％), high fat diet plus 0.5％ Acorn extract (AE0.5％). Total food intake and food efficiency ratio (FER) was not significantly different by acorn powder and extract supplementation. But, body weight was decreased by 20％ acorn powder. Acorn powder and extract supplementation for 4 weeks tend to decrease total cholesterol and triglyceride level on the serum and hepatic tissue. There was no significant difference in hepatic glutathione (GSH) content among all the groups. The hepatic GST activity in acorn supplemented groups was lower than that of control. Glutathione peroxidase and catalase activities were higher in acorn supplemented groups than that of control. Hepatic TBARS levels of experimental groups were also significantly lower than that of control group. Our finding suggest that acorn powders and extract might have potential role for improving lipid profiles and antioxidant enzyme activities in obese rats.

• 한국식생활문화학회지
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• 제27권2호
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• pp.225-232
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• 2012

This study was conducted to investigate the effects of acorn ($Quercus$ autissima carruther) powder on the antioxidant activity and quality characteristics of cookies. Cookies were prepared with different amounts of acorn powder (at ratios of 0, 0.5, 1, 3 and 5% to total flour quantity). Antioxidant activity was estimated based on DPPH free radical scavenging activity and total phenol content in acorn powder and cookies. To analyze quality characteristics, bulk density, pH of the dough, spread factor, loss rate, leavening rate, color, texture profile analysis, and sensory evaluations were measured. Loss rate, a values, total polyphenol contents and DPPH free radical scavenging activity of cookies significantly increased with increasing acorn powder content (p<0.01), whereas pH of the dough, L values and b values of the cookies significantly decreased with increasing acorn powder content (p<0.01). The results of sensory evaluation (appearance, taste, flavor, texture and overall preference) demonstrate that the 3% acorn cookie group showed the highest degree of preference among all items of added acorn powder. From these results, we suggest that acorn is a good ingredient for increasing the consumer acceptability and functionality of cookies.

• 한국식품저장유통학회지
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• 제23권4호
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• pp.510-515
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• 2016

본 연구는 쌀가루 대비 도토리 분말의 첨가량을 0%, 5%, 10%, 15%, 20%로 설기떡을 제조한 후, 일반성분 함량, 수용성 단백질, 환원당, 색도, 조직감, 관능검사 등을 실시하여 도토리 분말을 첨가한 설기떡의 품질특성을 연구하였다. 일반성분을 분석한 결과, 수분함량은 40.15~44.42%로 도토리 분말의 첨가량이 증가할수록 수분함량은 증가함을 보였고, 탄수화물 및 조단백질의 함량은 도토리 분말 첨가량이 증가할수록 감소함을 보였으며, 조지방 및 조회분 함량은 도토리 분말의 첨가량이 증가할수록 증가함을 보였다. 수용성 단백질 함량은 0.10~0.81 g/100 g으로 도토리 분말 무첨가구에 비해 도토리 분말 첨가량이 증가할수록 수용성 단백질 함량도 증가함을 보였고, 환원당 함량은 도토리 분말 무첨가구에서 가장 높았고, 도토리 분말 첨가량이 증가할수록 환원당 함량은 감소함을 보였다. 색도측정 결과 L값은 54.13~36.33으로 도토리 분말 첨가량이 증가할수록 명도 값이 감소하는 것으로 나타났고, 적색도를 나타내는 a값과 황색도 b값은 도토리 분말을 첨가할수록 증가하는 경향을 보였다. 조직감 측정 결과, 경도 및 씹힘성은 도토리 분말 첨가량이 증가할수록 감소하는 경향을 보였다. 관능검사결과, 색은 도토리 분말 15% 첨가한 설기떡이 가장 기호도가 높았고, 맛과 향, 질감, 전반적인 기호도에서는 도토리 분말 10% 첨가한 설기떡에서 가장 높았으며, 15% > 5% > 0% > 20% 순으로 평가되었다. 따라서 도토리 분말 10% 첨가한 설기떡이 전반적인 관능평가에서 다른 첨가구에 비해 높게 평가되었으며, 설기떡 제조시 기호도 향상을 나타낼 수 있을 것으로 판단되며, 향후 다양한 제품에 도토리 분말을 활용할 수 있을 것으로 생각된다.

• 한국식품영양과학회지
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• 제41권3호
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• pp.369-375
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• 2012

최근 식단의 간편성으로 빵 및 케이크류의 소비량이 증가하고 보조식에서 주식으로 전환되고 있다. 더불어 건강증진을 위한 기능성이 요구되고 있으며, 따라서 비만체질 개선 및 성인병예방 등의 기능을 갖는 도토리 묵가루 및 주정추출물을 0, 0.5, 1% 첨가하여 제조하고 첨가한 머핀을 제조하여 수분함량, 무게감소율 및 높이, 조직감, 관능검사를 통해 머핀의 품질을 평가하였다. 머핀의 수분함량은 도토리 묵가루 및 주정추출물 첨가량이 증가할수록 감소하였다. 이는 도토리가 갖는 보수성 때문에 상압건조법으로는 측정되지 않는 결합수가 도토리묵가루 및 추출물을 첨가량이 증가할수록 함께 증가하는 것으로 사료된다. 굽기 손실률과 부품성은 도토리 첨가량이 증가할수록 감소하는 경향을 보였다. 이는 도토리의 식이섬유소가 수분결합력이 커서 수분의 증발을 감소시켜 도토리묵가루 및 추출물을 첨가군이 첨가하지 않은 군보다 굽기 손실률이 낮은 것으로 사료된다. 색도는 도토리묵가루 및 추출물의 고유의 색의 영향으로 첨가량이 증가할수록 L값은 감소, a값은 증가, b값은 감소하였다. 조직감 측정 결과 경도(hardness)는 도토리 첨가량이 증가할수록 감소하였으며, 부착성(adhesiveness), 씹힘성(chewiness)도 감소하는 경향을 보였다. 관능검사 결과 색(color), 향(flavor), 맛(taste), 조직감(texture), 전반적인 기호도(overall acceptability)에서 0.1% 도토리 주정추출물을 첨가하였을 때 가장 높은 기호도를 나타내었다. 본 실험에서는 50% 도토리묵가루와 0.1% 주정추출물의 첨가가 머핀 제조에 있어 가장 적합할 것으로 사료되었으며, 이는 도토리 주정추출물의 특유의 향기와 쓴맛이 기호도에 영향을 미친 것으로 보인다. 따라서 도토리 주정추출물의 향기와 쓴맛을 감소시켜 첨가량을 늘릴 수 있는 추가적인 실험이 필요할 것으로 사료된다.

• 한국식품조리과학회지
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• 제29권2호
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• pp.177-184
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• 2013

This study was conducted to investigate the effects of acorn (fruits of Quercus species) powder on the antioxidant activity and quality characteristics of cookies. Cookies were prepared with different amounts (0, 0.5, 1, 3 and 5% to the flour quantity) of acorn powder. The antioxidant activity was estimated by DPPH free radical scavenging activity and the total phenolic acid content in acorn powder and cookies. For analyzing quality characteristics, bulk density, pH of the dough, spread factor, loss rate, leavening rate, color, texture profile analysis, and sensory evaluations were measured. The moisture contents, a values, total phenolic acid content and DPPH free radical scavenging activity of cookies significantly increased with increasing acorn powder (p<0.001), while the pH of the dough, L values and b values of the cookies significantly decreased with increasing acorn powder (p<0.001). The consumer acceptability score for the 3% acorn cookie groups ranked significantly (p<0.05) higher than the other groups in overall preference, appearance, flavor, taste and color. From these results, we suggest that acorn is a good ingredient for increasing the consumer acceptability and the functionality of cookies.

• 한국식품영양학회지
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• 제30권5호
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• pp.1042-1047
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• 2017

In order to improve the usability of mealworm and the nutritional quality of acorn Mook mostly composed of carbohydrates, we prepared acorn Mook using with different levels of mealworm powder, and the physico-chemical and sensory evaluation were investigated. In the content of proximate chemical composition, moisture content did not show any significant difference. But crude protein, crude ash, and crude fat contents were increased with increasing mealworm content. Carbohydrate content was reduced as mealworm content increased. Lightness showed no significant difference among treatments, redness was increased, and yellowness was decreased as the amount of mealworm powder increased. In physiological properties, hardness, gumminess, chewiness, and springiness were significantly increased as the amount of mealworm powder decreased. However, adhesiveness and cohesiveness were not significantly different. Ascorbic acid content, activities of DPPH and ABTS radical scavenging activities were decreased with increasing amount of mealworm in acorn Mook. In sensory evaluation, acorn Mook containing 0.75% of mealworm powder showed highly preference compared with the control.

• 문화기술의 융합
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• 제9권6호
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• pp.193-200
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• 2023

서리태분말의 첨가량(0%, 2%, 4%, 6%)을 달리하여 도토리묵을 제조하여 품질특성 및 항산화성을 실험하였다. 서리테 분말의 첨가량을 달리하여 도토리묵을 만들어 수분함량, 색도, 조직감, 항산화성, 관능평가 검사를 한 결과는 다음과 같다. 서리태 분말과 도토리분말의 수분함량은 각각 7.48%, 4.36% 였으며, 서리태분말의 첨가량을 달리하여 도토리묵을 만들어 수분함량을 분석한 결과 70.83%~81.77% 였다. 서리태분말의 첨가량이 증가할 수록 명도인 L 값은 감소하는 경향을 보였고, 적색도를 나타내는 a값은 첨가량이 증가할수록 7.29~7.79로 증가하였으며, 황색도를 나타내는 b값은 서리태 분말의 첨가량이 증가할수록 감소하였다. 조직감을 측정한 결과 서리태분말의 첨가량이 증가할수록 도토리묵의 경도(hardness), 부착성(Adhesiveness), 씹힘성(chewiness)은 유의적으로 감소하였고(p<0.05), 응집성(cohesiveness)과 씹힘성(chewiness)도 감소하는 것으로 나타났다. 항산화성 결과 서리태분말을 첨가(2%~6%)한 도토리묵의 총페놀함량은 유의적으로 증가하였으며(p<0.05), 총플라보노이드 함량, DPPH free radical 소거능, ABTS 양이온 라디칼 소거활성은 감소하는 것을 알 수 있었다. 우리는 이상의 결과 전통음식인 묵을 만들 때 항산화 기능을 갖춘 서리태 분말을 첨가하여 도토리묵을 만들 때 기초자료로 활용하는데 도움이 될 수 있을 것이라 생각한다.