• 한국식품영양학회지
• /
• 제20권4호
• /
• pp.399-405
• /
• 2007

The quality characteristics of breads made by adding levels of 30%, 60%, and 100% aloe gel were investigated. The 60% aloe gel sample had a larger dough volume than the control dough. Also, the loaf volume and specific volume of the bread made with 60% aloe gel were larger than those of the control bread. The pasting temperature increased gradually with the increasing amounts of substituted aloe gel as compared to wheat flour with water added$(66.5{\pm}12^{\circ}C)$; the wheat flour with 100% aloe gel had a pasting temperature of $90.7{\pm}1.1^{\circ}C$. Peak viscosity decreased gradually with increasing amounts of aloe gel when compared to the wheat flour with water added. Setback also was decreased gradually with the increasing amounts of aloe gel as compared to the wheat flour with added water. From the setback decrease it is suggested that the aloe controlled retrogradation of the bread during short-term storage. The crumb color of the bread made with the aloe gel was not significantly different to that of the control bread, and the color of the crumb was yellow-white. Bread hardness decreased gradually with increasing amounts of the substituted aloe gel. However, bread gumminess and chewiness increased gradually with increasing amounts of aloe gel. The springiness of the bread made with 100% aloe gel was lower than that of the control bread. With regard to flavor and taste, the bread made with 100% aloe gel produced a green-like odor and had a bitter taste. The mouth feel of the breads made with aloe gel was considered soft and moist. The overall acceptabilities of the breads made with 30% and 60% aloe gel were not significantly different from the control bread, but the bread made with 100% aloe gel had a green smell and bitter taste. Yet accordingly, the results indicate that functional and health products with improved quality could be developed by adding aloe gel to breads and cakes.

• 한국식품영양학회지
• /
• 제10권3호
• /
• pp.287-294
• /
• 1997

When bread making, the condition of thawing-fermentation for frozen dough were tested in variable temperature, and measured thawing-fermentation time and volume of frozen dough. L-Ascorbic acid (L-Aa) was added in frozen dough for the comparison test of develop volume in bread staling degree of baking bread were measured additive frozen dough which was stoppages in freezing, staling degrees were tested hardness with Rheometer. The test for comparison of thawing-fermentation time in variable temperature was shown the condition of dough conditioner at 3$0^{\circ}C$ was most effective for bread making, Because That condition was required very short time(74 min) But, in this comparison of volume in final products was shown the products in the condition of thawing-fermentation at 3$0^{\circ}C$ was smaller than the products at 5$^{\circ}C$(418 ml). The baking volume of L-Aa additive frozen dough which has under gone thawing-fermentation at 3$0^{\circ}C$, were shown baking volume of 420 ml in 2 weeks storage terms to 100 mg/kg L-Aa additive dough and shown baking volume of 454 ml in 4 weeks storage terms to dough of 200 mg/kg additive weight. Staling degrees of L-Aa additive frozen bread were measured with Rheometer. The hardness of 100 mg/kg L-Aa additive frozen bread was sown low level hardness in 1~2 weeks freezing term, 150 mg/kg L-Aa additive frozen bread was shown low level hardness in 3 weeks freezing term. In 4 weeks freezing term, 200 mg/kg L-Aa additive frozen bread was shown low level hardness compared with non-additive L-Aa frozen bread. In comparison of frozen bread quality, non-additive L-Aa products was better than additive L-Aa products in equality of baking shape and external apparence. But in total quality in external and internal apparence, additive L-Aa products was better than non-additive L-Aa products.

• 한국식품과학회지
• /
• 제33권1호
• /
• pp.50-54
• /
• 2001

8품종 변이체 쌀 전분의 청가에 의한 아밀로오스 함량의 차이는 남풍벼>화청벼>분질미>남풍 CB243>화청 du-1>남풍 EM90>화청찰벼>shr.의 순이었다. 아밀로펙틴의 미세구조는 효소처리에 의해서 debranching시킨 전분의 glucose chain length분포 비교에 의해서 수행되었고, 품종별로 미세구조상에 차이가 있었다. 아밀로오스 함량이 낮을수록 씹힘성이 좋은 쌀빵의 제조가 가능하였으며, 아밀로펙틴 분획에 짧은 쇄장을 많이 함유하는 품종일수록 질감 및 기호도가 높은 쌀빵의 제조가 가능하였다.

• Journal of Nutrition and Health
• /
• 제49권3호
• /
• pp.144-152
• /
• 2016

본 연구는 귤피가루를 활용하여 모닝빵을 개발하고 이를 대학기숙사에 거주하고 있는 과체중 및 비만인 20대 남 녀에게 섭취하게 해봄으로써 아침결식률을 낮출 수 있는 새로운 식품 소재를 개발하고자 실시되었다. 체중과 BMI의 경우 GB 섭취군과 CPB 섭취군 모두에서 감소하였으며, CPB 섭취군에서 사전에 비해 사후 유의적으로 체중과 BMI가 감소한 것으로 나타났다 (p < 0.05). WHR은 GB 섭취군에서는 증가하는 경향을 보였으나 CPB 섭취군에서는 유의적으로 감소하였다 (p < 0.05). BFM은 두군 모두에서 유의적으로 증가하였으며 (p < 0.05) 군간에 유의성을 띄지 않았다. TC는 GB 섭취군에서는 증가하는 경향을 보였으나 CPB 섭취군에서는 유의적으로 감소하였다 (p < 0.05). HDL은 두군 모두에서 증가하였고 GB 섭취군에서 유의성을 보였다 (p < 0.05). LDL은 두군 모두에서 유의적으로 감소하였으며 (p < 0.05) 군간에 유의성은 없었다. GOT와 GPT는 GB 섭취군과 CPB 섭취군 모두에서 감소하였고 CPB 섭취군에서 유의성을 보였다 (p < 0.05). GB와 CPB를 섭취한 군간에 신체계측치와 혈액생화학적 수치에서 유의적인 차이를 보이는 항목은 없었으나 CPB 섭취군에서 사전에 비해 TC, LDL, GOT, GPT 수치가 유의적으로 감소하였다는 점에서 (p < 0.05) 본 연구는 시간적 흐름에 따라 변화를 추적하는 종단적 연구에 가깝다고 판단되며 본 연구를 통하여서 귤피가 심혈관계질환의 유병률을 낮춰줄 수 있는 잠재적 가능성이 있음을 임상적으로 확인하였다. 따라서 향후 본 연구와 유사한 연구들이 double blind cross-over study와 같은 대규모 임상연구로 진행되어 귤피의 지질관련 효과들을 보다 명확하게 입증해줄 필요성이 있을 것으로 판단된다.

• 수산해양교육연구
• /
• 제27권2호
• /
• pp.467-475
• /
• 2015

김을 첨가한 빵의 제빵성을 개선하기 위하여 페이스트 상의 김 가수분해물의 첨가가 반죽 및 제빵 특성에 미치는 영향을 조사하였다. 김 가수분해물 제조 조건 설정을 위해 김 분말에 5배량의 물을 넣고 0.5% Flavouzyme 단백질 가수분해 효소를 첨가하여 $50^{\circ}C$에서 가수분해 시간을 달리하면서 가수분해물을 제조한 후 제빵성을 측정하였다. 효소 가수분해 시간이 증가함에 따라 제빵성이 증가하였으며 가장 제빵성이 우수한 9시간 가수분해한 김 가수분해물은 수분 86.0 %, 단백질 6.5%, 회분 2.6%, 총 식이섬유 3.9%, 아미노산성 질소 0.8%, pH 5.72, 명도 37.88, 점성은 Pas 388.5로서 유동성 반 액체 상태였다. 김 가수분해물 첨가량에 따른 반죽의 발효 특성을 조사한 결과 8% 구운 김 분말 첨가에 상당하는 김 가수분해물을 첨가한 시료의 가스 발생율, 가스 보유율및 반죽 물성이 분말 김 첨가와 대조구보다 우수하였고 제빵 품질이 개선되었다. 또한 반죽의 반죽형성시간은 대조구나 구운 김 첨가 반죽보다 발효시간이 짧아 short time dough 공정이 유효하였으며 glucose oxidase 효소를 첨가하거나 HPMC와 CMC 친수성 검류를 첨가할 경우 제빵성이 더욱 개선되었고 이들을 복합적으로 활용할 경우 더욱 상승효과가 있었다.

• 한국식품영양과학회지
• /
• 제38권8호
• /
• pp.1042-1049
• /
• 2009

본 연구는 서울지역에 거주하는 건강한 성인 남녀(남자 23명, 여자 10명) 33명을 대상으로 trans 지방 3.75 g을 첨가 한 쌀 빵, 콩 빵과 밀 빵의 섭취가 식후 혈장에서의 지방산과 지질흡수에 미치는 효과를 확인하기 위하여 실시하였다. 시험군은 각 군 당 11명씩 3군으로 분류하였다. 쌀 빵은 밀가루 40 g과 쌀가루 40 g에 trans 지방 3.75 g을, 콩 빵은 콩가루 30 g과 밀가루 50 g에 trans 지방 3.75 g을 첨가하였고, 밀빵은 밀가루 80 g에 trans 지방 3.75 g을 첨가하여 식빵 형태로 각각 조제하였다. 대상자들은 8시간 공복 후 각각의 빵을 섭취하고 0, 1, 2, 3, 4시간 후 채혈하였고, 이는 혈중 지방산과 trans 지방산의 농도 및 지질 수준 분석에 이용되었다. 포화지방산인 C16:0과 C18:0의 수준은 밀 빵을 섭취한 군에서는 시간의 경과에 따라 유의적인 차이를 보였으나 콩 빵과 쌀 빵을 섭취한 군에서는 섭취 후 유사한 수준이었다. C16:0은 콩 빵과 밀 빵을 섭취한 군에서는 섭취 1시간 후에 peak에도달하였으나 시간이 경과함에 감소하는 경향을 보여 섭취4시간 후 밀 빵 군에서는 변화량은 섭취 전의 수준과 유사하였으나 콩 빵 군에서는 섭취하기 전보다도 낮아지는 것으로 나타났다. C18:0은 섭취 1시간 후 콩 빵과 쌀 빵을 섭취한군이 밀 빵을 섭취한 군에 비해 유의적으로 감소하였으나 콩 빵과 쌀 빵 군 간에 유의적인 차이는 없었다. Trans 지방산인 C18:1t과 18:2t는 세 군 모두에서는 섭취 2시간 후 가장 높은 수준을 보였으며 섭취 4시간 후에는 콩 빵 섭취한 군에서의 C18:1t의 혈중 농도가 가장 낮았다. C18:1c은 섭취 4시간 후 콩 빵 군에서 가장 낮았고 쌀 빵 군에서 가장 높았다. 또한 콩 빵의 섭취는 TG의 증가를 효과적으로 억제하였다. 이상의 결과로 미루어 볼 때 콩 빵의 섭취는 밀 빵을 섭취했을 때보다 혈중 trans 지방산을 비롯한 포화지방산 농도와 TG의 수준을 저하하였으며 이것은 콩에 함유된 식이섬유와 생리활성물질들이 지방산과 지방의 체내 흡수율을 저하시키거나 흡수속도를 느리게 하는 때문으로 사료된다. 따라서 trans 지방산을 비롯한 포화지방산과 TG의 체내 농도를 저하시키기 위해서는 밀 빵보다 콩 빵의 형태로 섭취하는 것이 유익할 것으로 사료된다.

• 농업과학연구
• /
• 제40권4호
• /
• pp.377-383
• /
• 2013

Premature-green rice is typically obtained by early harvest when culms of rice still appear green in color, and the rice and its food products have been considered as wellbeing foods. This study was carried out to determine the quality characteristics of cookies made from flour added with 10, 20, and 30% whole green rice powde r(WGRP) of two kinds of Hopum and Shinsun waxy rice. The quality characteristics of cookies, including pH, spread factor, color, hardness, and sensory properties, were estimated. WGRP with different levels of 10, 20, and 30% was added into powder for preparing cookies, and their quality properties were evaluated. The pH and hardness of the cookies increased, while spread factor showed highest added with 20% Hopum and Shinsun waxy rice. The color (L) of cookies decreased 20% added with Hopum and Shinsun waxy rice. The sensory properties of cookies was highest added with 20% Hopum and 10% Shinsun waxy rice. The result of this study suggest that addition of 20% Hopum and 10% Shinsun waxy rice are available rice cookies. It was concluded that WGRP may have a potential in bakery industry as a new food material.

• 한국식생활문화학회지
• /
• 제18권5호
• /
• pp.466-474
• /
• 2003

This study was carried out to investigate the dining-out behavior of breakfast and preference on the menu of female college students. 500 questionnaires were distributed and 417 were used for statistical analysis(SAS program). This survey was conducted from June, 2000 to October, 2000. 72.8% of the respondents thought there were problems in eating breakfast. The problems were 'skipping breakfast frequently(33.1%)', 'short eating time(20.9%)', 'simple menu(18.8%)'. Preference of dining-out breakfast menus were 'bread & milk(43.8%)', 'conventional menu(34.7%)', 'snack(15.5%)', soup or 'porridge(6.0%)'. A general preference of breakfast menus were conventional (63.7%), 'bread & milk(21.1%)', 'milk and breakfast cereal(8.7%)', 'soup or porridge(6.5%)'. Increase on the amount of monthly allowance decreased the preference of conventional type of breakfast(P<0.05). The questions about the breakfast were 'what is the best menus for breakfast(49.2%)', 'alternative to rice(17.1%)', 'the amounts of breakfast(12.1%)'. But there was no significant difference among these variables. In conclusion, development of convenient & well-balanced breakfast model and nutritional education are needed to increase the nutritional status of female college students.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2005년도 춘계학술대회
• /
• pp.374-377
• /
• 2005

Hyundai motor company has designed a above 50kW-class PEMFC stack for Fuelcell vehicle based on SUV. Hyundai increased the power density of the stack through the optimized flowfield of bipolar plate, manifold structure, and improvement of sealing, etc. Also, Gas to Gas humidifier was adopted in fuelcell system to reduce the system humidification load, it had been proven by short stack test. Components of stack, bilpolar plate, manifold, were analyzed through the computer simulation, so temperature and pressure distribution in the components and system were improved. This stack tested in Bread Board which was organized similar to real vehicle system.

• 대한지역사회영양학회지
• /
• 제4권4호
• /
• pp.575-586
• /
• 1999

We studied teachers' breakfast habits and their preferences on various breakfast types so that we will furnish data to nutrition education including ideal breakfast habit and development of various menus. The meal considered as most importantly were dinner (66.2%), fellowed by lunch(21.6%), all three meals(6.4%) and breakfast(5.8%). Men considered breakfast more importantly than women. On the contrary, women considered dinner more significantly compared to men. The group aged 45 and over emphasized breakfast and all three meal. 78.1% of subjects answered that breakfast is necessary and 61.5% of subjects ate breakfast regularly. Those who have breakfast regularly was lower in women(50.0%) than in men(71.3%). Instead, those who eat breakfast irregularly or skipping it was higher among women(50.0%) than among men(29.7%). The percentages of having breakfast regularly was higher in older groups. For breakfast, 82.1% of subjects had conventional meal which included rice, soup and Kimch. On the other hand, 13.9% of subjects had Western style breakfast such as bread, cornflakes and milk. The major reason for eating breakfast regularly was answered as 'maintain health(71.8%)'. The major reason for eating breakfast irregularly or skipping was 'don't have enough time to eat(48.0%)', 'poor appetite(28.6%)'. The major physical discomfort after skipping breakfast was 'experience brash(35.6%)', 'lack of physical strength(35.1%)'. Subjects answered that breakfast served as 'source of physical strength(64.9%)', 'provides nutritional balance for a day(21.1%)' and 15.0% of subjects ate out breakfast. Therefore, it is suggested that teachers as well as school children be provided breakfast and snack in school. The preference and opinion regarding breakfast types wer conventional food including rice, soup and Kimch(67.0%). There was a little preference in Western style food such as bread, milk and coffee(14.3%), cereals mixture and porridge(10.7%). It was noticeable that 49.1% of females and those who reside in Seoul(42.2%) selected various breakfast types excluding conventional food. Therefore it will be accepted to working women as breakfast if it is nutritionally balanced and cook well in short time.