• Asian-Australasian Journal of Animal Sciences
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• 제16권1호
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• pp.36-38
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• 2003

The effect of different feeding ratios of concentrate to roughage on ruminal lipid synthesis in vitro was examined. Three sheep fitted with a rumen fistula were fed three different ratios (8:2, 4:6 and 0:10) of concentrate and roughage, and their rumen liquor were used for incubation. $^{13}C$-labeled glucose or sodium acetate as substrate was added to cultures of rumen liquor, and they were incubated for 6 h. The total lipid in the culture of the rumen liquor was extracted, and the percentage of $^{13}C$ excess was analyzed. The percentage of $^{13}C$ excess recovered when incubated with glucose increased with increased ratio of concentrate in the diet. The values of cultures incubated with glucose were higher than those incubated with sodium acetate except the roughage-only feeding. In the roughage-only diet, the percentage of $^{13}C$ excess when incubated with sodium acetate was highest of all diets. The recovery percentage of $^{13}C$ from glucose increased with increased ratio of concentrate. The recovery percentage of $^{13}C$ from sodium acetate addition in only roughage feeding was highest among the three diets. The recovery percentage of $^{13}C$ from glucose was markedly higher than that of sodium acetate addition in all feedings. The results indicate that high concentrate feeding facilitates lipid synthesis by rumen microorganisms, and that glucose may be the precursor for lipid synthesis rather than acetic acid.

• 한국조리학회지
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• 제18권3호
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• pp.239-251
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• 2012

본 연구는 대추의 농축액을 첨가한 데리야끼소스의 이화학적, 관능적 특성에에 대하여 조사하였다. 대추 농축액을 첨가한 데리야끼 소스구의 당도는 대추 농축액 무첨가구보다 높았다. 데리야끼 소스의 대추 농축액 증가에 따라 점도, 명도(L값), 적색도(a값), 황색도(b값)이 높아지는 경향을 나타냈다. 반면, 데리야끼 소스의 대추농축액 첨가량 증가는 pH, 염도, 유리 아미노산의 함량을 감소시키는 경향을 나타내었다. 관능평가에서는 대추 농축액 20% 첨가 데리야끼 소스가 가장 높은 관능선호도를 나타내었다. 저장기간에 따른 데리야끼 소스의 총균수는 대추 농축액 무첨가구, 첨가구 모두 저장기간동안 발견되지 않았다. 이상의 결과로써, 위의 결과를 고려하여 대추 농축액을 첨가한 데리야끼 소스 제조 시 대추 농축액을 20% 첨가하는 것이 적절한 배합비로 사료된다.

• 한국조리학회지
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• 제17권4호
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• pp.285-294
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• 2011

본 연구는 뽕나무열매인 오디를 이용하여 오디농축액을 첨가하여 일상생활에 쉽게 접하는 머핀을 제조하였다. 오디머핀의 최적화를 찾아내고 품질특성과 신제품의 가능성을 알아보고자 하였다. pH, 비중, 제품의 비체적, 색도, 기계적 품질 특성과 기호도 검사를 실시하였다. 오디 농축액 첨가량이 많을수록 pH는 낮고 비중은 감소하였다. 색도는 L, a, b값이 감소하였고 탄력성은 증가하였다. 외관은 15% 첨가군이 6.4로 가장 높은 값을 나타냈고, 나머지 시료는 5.1-5.9사이의 값으로 비슷한 기호도를 보였다. 전반적인 기호도는 20%첨가군이 가장 높은 기호도를 보였고 20% > 15% > 10% > 0% > 25%순 이었다. 오디농축액의 첨가로 품질의 저하가 있었지만 유지나 물량의 조절과 유화제의 첨가로 제품의 향상이 기대되며 15~20첨가로 기호도가 높아지리라 사료된다.

• 한국식품영양과학회지
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• 제42권7호
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• pp.1079-1085
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• 2013

본 연구에서는 오미자 농축액 첨가량(0~5%)에 따른 소스의 품질특성과 혈당강하능 및 관능적 특성에 미치는 영향에 대해 조사하였다. 오미자 농축액 첨가량이 증가할수록 수분함량, 총 페놀함량 및 환원당은 증가하였고 pH는 감소하였다. 소스의 이화학 시험 결과 당도, 환원당, 총 페놀함량, ${\alpha}$-amylase 저해율 및 ${\alpha}$-glucosidase 저해율 등은 오미자 농축액의 첨가량에 따라 증가하였다. 소스의 색도는 오미자 농축액 첨가량이 증가함에 따라 명도는 감소하였고, 적색도, 황색도 및 ${\Delta}E$ 값은 증가하였다. 관능적 특성은 소스만 섭취 하였을 때 4% 첨가한 오미자 소스에서 가장 높은 기호도를 나타내었고, 닭 가슴살과 함께 섭취하였을 때 5% 첨가한 오미자 소스의 기호도가 가장 높았다.

• Asian-Australasian Journal of Animal Sciences
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• 제15권9호
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• pp.1307-1311
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• 2002

Twelve dietary combinations were prepared using 70 parts of fermented wheat straw (FWS) as the sole roughage supplemented with 30 parts of either the low protein concentrate mixture (Conc.-I), high protein concentrate mixture (conc.-II), maize grains (M), solvent extracted mustard cake (DMC), deoiled rice bran (DRB), uromol bran mixture (UBM), deep stacked poultry litter (DSPL), dried poultry droppings (DPD), M-DMC mixture (50:50), M-UBM mixture (50:50), M-DPD mixture (50:50) or M-UBM-DPD mixture (50:25:25) and evaluated by in-sacco technique. The above dietary combinations were also evaluated by changing the roughage to concentrate ratio to 60:40. The digestion kinetics for DM and CP revealed that FWS:DPD had the highest, whereas, the FWS:M-DMC had the lowest rapidly soluble fraction. The potentially degradable fraction was found to be maximum in FWS:M and minimum in FWS:DPD dietary combinations. The higher degradation rate of FWS:DRB and FWS:UBM combinations was responsible for their significantly (p<0.05) higher effective degradability as compared to other combinations. The highest undegradable fraction noted in FWS:M-UBM-DPD followed by FWS:DMC was responsible for high rumen fill values. The FWS:DRB, FWS:UBM and FWS:DPD combinations had higher potential for DM intake. The dietary combination with higher concentrate level (60:40) was responsible for higher potentially degradable fraction, which was degraded at a faster rate resulting in significantly higher effective degradability as compared to the corresponding dietary combination with low concentrate level (70:30). The low undegradable fraction in the high concentrate diet was responsible for low rumen fill values, which predicted of high potential for DM intake. Out of 24 dietary combinations, FWS with either of UBM, DRB, DMC, Maize, M-DMC or DPD in 70:30 ratio supplemented with minerals and vitamin A in comparison to conventional feeding practice (roughage and concentrate mixture) could be exploited as complete feed for different categories of ruminants.

• Asian-Australasian Journal of Animal Sciences
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• 제16권3호
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• pp.374-379
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• 2003

Four rumen fistulated Murrah buffaloes were used to study the effect of four diets differing in roughage to concentrate ratio on rumen biochemical changes, microbial enzyme profile and in sacco degradability of feed in a $4{\times}4$ Latin Square design. The animals were fed four diets consisting of 80:20, 70:30, 60:40 and 50:50 ratios of wheat straw and concentrate mixtures, respectively. Wheat straw and concentrate mixture were mixed with water (0.6 l/kg feed) and complete feed mixture was offered to the animals at 8:00 h and 16:00 h in two equal parts. The variation in pH of rumen liquor (difference of maximum and minimum during 0-8 h post feeding) increased with increasing level of concentrate mixture in the diet. There was no effect of diet composition on volatile fatty acids, total nitrogen and trichloro-acetic acid precipitable nitrogen in the rumen liquor, but ammonia nitrogen increased with increasing level of concentrate mixture in the ration. Major portions of all fibre degrading enzymes were present in the particulate material (PM) of the rumen contents, but protease was absent in PM fraction. The activities of micro-crystalline cellulase, acetyl esterase and protease increased with increase in the level of concentrate mixture, but the activities of other enzymes (carboxymethylcellulase, filter paper degrading activity, xylanase, $\beta$-glucosidase and $\beta$-xylosidase) were not affected. The in sacco degradability and effective degradability of feeds increased with increasing level of concentrate mixture in the ration.

• 한국식품과학회지
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• 제44권4호
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• pp.417-421
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• 2012

최근 막걸리 소비량이 증가함에 따라 막걸리의 기능성 및 기호도가 증진되고 있어 막걸리에 석류의 기능성을 부여하고 색택을 향상시키고자 석류즙 농축액을 이용하여 석류 막걸리를 제조하였다. 막걸리 제조를 위해 첨가 시기 및 농축액 첨가량(3, 5, 7%)을 달리하여 석류 막걸리를 제조하였으며, 제조된 석류즙 막걸리의 이화학적 특성 및 관능평가를 실시하였다. 그 결과 석류즙 농축액 첨가량이 많을수록 적정산도, 당도, 알코올 함량은 높았다. 반대로 pH 아미노산 함량은 첨가량이 많을수록 낮았으며, 석류 막걸리의 관능검사 결과 3% 석류즙 농축액을 첨가한 처리구가 단맛, 신맛, 쓴맛, 향, 색감, 전체적 기호도에서 가장 높은 점수를 얻었으며 석류즙 막걸리를 위한 밑술 제조 시 3% 석류즙 농축액을 첨가하여 제조한 막걸리의 품질이 가장 우수하였다. 결과를 종합해 볼 때, 석류즙 농축액 3%를 밑술 제조 시 첨가하여 제조하는 것이 석류 막걸리의 제조와 제조된 석류 막걸리 제품화에 있어서 가장 우수할 것으로 판단된다.

• 한국식품과학회지
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• 제34권3호
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• pp.454-458
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• 2002

과실가공품에서의 갈변을 억제하기 위하여 사과농축액에 갈변억제제 즉, PVPP (polyvinylpolypyrrolidone), bentonite, gelatin, celite 545, tannic acid, sodium sulfite를 첨가하여 여과한 후 갈변억제효과를 측정하였다. 색도의 변화는 PVPP를 첨가한 농축액에서 L값(lightness)이 8.16으로 대조구와 다른 농축액에 비해 갈변억제에 효과가 있음을 알 수 있었으며, 탁도(660 nm에서의 흡광도)는 대조구 0.05인데 비해, PVPP, gelatin celite 545, tannic acid, sodium sulfite를 함유한 사과농축액은 각각 0.003, 0.038, 0.038, 0.018, 0.022로 다소 낮은 수치를 보여 부유물 등의 제거효과가 나타났으며 특히 PVPP의 효과가 뚜렷하였다. 또한, PVPP 처리된 사과농축액 중의 PPO(polyphenoloxidase)활성과 폴리페놀화합물(catechol, catechin, chlorogenic acid, epicatechin 등) 함량에서도 현저하게 감소하여 효소적 갈변이 억제되었음을 알 수 있었다. 따라서, PVPP가 사과농축액의 색상, 탁도, PPO활성 및 폴리페놀화합물 함량 등 효소적 갈변특성을 개선시키는 우수한 갈변억제제임을 확인하였다.

• 한국식품영양학회지
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• 제34권6호
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• pp.641-649
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• 2021

The objective of this study was to evaluate the quality characteristics of mozzarella cheese added wine concentrate. Mozzarella cheese was produced with different additives of wine concentrate which were 0~5%. The pH and the total acidity of the Cheese were analyzed. We also examined the radical scavenging activities for the antioxidant effect of samples and evaluated for their total polyphenol, and total flavonoid contents. The pH of Meoru wine cheese (6.28~6.37) was significantly higher and total acidity tended to decrease compared to that of the control. L^* (lightness) of the wine cheese decreased with increasing amounts of wine concentrates whereas a^* (redness) tended to increase. In the texture profile analysis, Meoru wine cheese showed higher values of hardness, gumminess, and chewiness. The ABTS radical scavenging activity of Meoru wine cheese showed the highest value when wine concentrate amounts were 2%. The DPPH radical scavenging activity was significantly increased in cheese added with wine concentrate. Total polyphenol contents and total flavonoid contents of Meoru wine cheese tended to increase with increasing amounts of wine concentrate. This research result highlights the positive influence of wine concentrate addition in cheese. Also, these results are expected to impact the experience programs in farm wineries.

• Animal Bioscience
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• 제36권8호
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• pp.1199-1208
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• 2023

Objective: The purpose of this study was to perform a comparative analysis of metabolite levels in serum and milk obtained from cows fed on different concentrate to forage feed ratios. Methods: Eight lactating Holstein cows were divided into two groups: a high forage ratio diet (HF; 80% Italian ryegrass and 20% concentrate of daily intake of dry matter) group and a high concentrate diet (HC; 20% Italian ryegrass and 80% concentrate) group. Blood was collected from the jugular vein, and milk was sampled using a milking machine. Metabolite levels in serum and milk were estimated using proton nuclear magnetic resonance and subjected to qualitative and quantitative analyses performed using Chenomx 8.4. For statistical analysis, Student's t-test and multivariate analysis were performed using Metaboanalyst 4.0. Results: In the principal component analysis, a clear distinction between the two groups regarding milk metabolites while serum metabolites were shown in similar. In serum, 95 metabolites were identified, and 13 metabolites (include leucine, lactulose, glucose, betaine, etc.) showed significant differences between the two groups. In milk, 122 metabolites were identified, and 20 metabolites (include urea, carnitine, acetate, butyrate, arabinitol, etc.) showed significant differences. Conclusion: Our results show that different concentrate to forage feed ratios impact the metabolite levels in the serum and milk of lactating Holstein cows. A higher number of metabolites in milk, including those associated with milk fat synthesis and the presence of Escherichia coli in the rumen, differed between the two groups compared to that in the serum. The results of this study provide a useful insight into the metabolites associated with different concentrate to forge feed ratios in cows and may aid in the search for potential biomarkers for subacute ruminal acidosis.