• 대한지역사회영양학회지
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• 제27권5호
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• pp.373-386
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• 2022

Objectives: This study examined the perception of the vegan trend of millennials and their future needs. Methods: This study was conducted online from June 21, 2021, to July 15, 2021, targeting 425 adult men and women born between 1980 and 2000. The contents of the survey were divided into four categories: general information, awareness of vegetables, awareness of vegan trends, and future needs for vegan trends. Results: Most respondents recognized the importance of eating vegetables and perceived vegetarianism and veganism as a lifestyle. Regarding the perception of the vegan trend, the highest response rate was 'The vegan trend is to be satisfied with my life regardless of other people', while the lowest response rate was 'The vegan trend is only a temporary fad'. The reasons for purchasing vegan products with high response rates were 'interest in the earth and environment', 'protection of animal rights', and 'thinking about health'. The type of vegan product wanted in the future was delicious food, and convenience level was in the order of 'completely cooked', 'half-cooked', and 'pre-processed'. Among the sustainable vegetarian types that millennials responded, 'semi-vegetarian', which can consume most animal products excluding red meat, showed the highest response rate. Conclusions: The positive perceptions about vegetables are expected to increase. Efforts should be made to develop convenient meals using vegetables and provide reasonable prices to expand vegetable intake.

• 한국식생활문화학회지
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• 제21권2호
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• pp.187-192
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• 2006

This study is to investigate the recognition and preference of tofu food among general consumers and housewives in order to develope new tofu menu. The questionnaires are consisted of general questions, style of dining out, frequency of dining, health status, preference of tofu, reason for prefer tofu. A total of 262 questionnaires were analyzed for statistical analysis. The statistical analysis was completed using SAS program (Version 8.2) for descriptive analysis and ${\chi}^2\;-test$. Main results of this study were as follows: Most of the respondents prefer Korean food, 70% of the respondents are general consumers while 73.5% of the respondents are housewives. The frequency of dining out was 1-2 times per week. The two groups bought pre-cooked food one to two times per week. Fourity seven percent of the general consumers and 50% of housewives did not like the taste of tofu due to plain flavor. The respondents overall preferred many different ways to prepare tofu dishes. The results also indicated that tofu dishes are used as side-dishes. Thirty three percent of house wives had tofu with miso soup and pan-fried tofu, while 29.6% of the general consumers had soft tofu stew. 34% of the general consumers preferred stuffed tofu with shrimp, while 35.5% of the housewives liked it. 17% of the general consumers liked grilled tofu with crab meat sauce while only 14.5% of the housewives preferred the menu. Tofu teriyaki was preferred among 8.2% of the general consumers while 13.2% of the housewives liked tofu teriyaki.

• 한국축산식품학회지
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• 제44권5호
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• pp.1055-1068
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• 2024

The differences in the proteolytic patterns and shear force of pork and beef during aging were evaluated. Pork and beef semitendinosus muscles were obtained at 24 and 48 h postmortem, respectively, and aged at 4℃ for 0 (Day 0), 7 (Day 7), and 14 days (Day 14). Changes in the electrical conductivity were observed in pork on Day 7 and beef on Day 14. The calpain activity increased in pork (p<0.05) after 14 days of aging, whereas that of beef decreased on Day 7 (p<0.05). The cathepsin B activity in pork and beef increased between Day 7 and 14 (p<0.05). The content of α-amino group in the 10% trichloroacetic acid-soluble fraction increased between Day 7 and 14 in pork (p<0.05), but increased steadily in beef throughout aging (p<0.05). The electrophoretogram of the myofibrillar proteins revealed a 30 kDa protein band only in the beef lane on Day 14. The cooked pork had no significant changes in the shear force during aging periods (p>0.05), while the gradual decrease in the shear force with the increasing aging periods was shown in the cooked beef (p<0.05). Circular dichroism analysis of myosin extracts from pork and beef revealed thermal denaturation temperatures of 55℃ and 58℃, respectively. This study highlights the different post-mortem proteolytic patterns and thermal denaturation temperatures of myosin in pork and beef semitendinosus muscles, which contribute to distinct changes in the shear force during aging between pork and beef.

• 한국식품조리과학회지
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• 제23권6호
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• pp.987-1002
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• 2007

조선시대 고조리서와 고문헌고찰을 통한 전통음식인 미음, 미수, 고음류의 조리방법은 다음과 같다. 미음류는 쌀과 잡곡류를 섞어 조리한 미음류 7종류와 견과류에 잡곡류와 한약재료 등을 섞어 조리한 미음류는 3종류이었다. 약초 등 한약 재료에 육류, 조류, 어패류 등을 섞어 조리한 미음류는 7종류로 총 17종류의 미음과 미수, 고음류 등이 분류되었다. 세부적인 조리방법은 다음과 같다. (1) 곡류를 이용한 미음으로 쌀과 조 등은 오랫동안 끓여 즙을 내 체에 받혀 소금간을 하였고, 율무, 수수 등은 수비한 가루를 끓이거나 물에 타 먹었다. (2) 인삼 등 한약재료 등은 오래 동안 끓여 성분이 용출되면 체에 밭여 액즙을 사용하였고 고기, 뼈, 어패류 등도 함께 오랫동안 푹 끓여 체에 받혀 즙으로 만들어 수시로 음료 마시듯이 이용하였다. 갈분, 율무 등은 수비한 가루로 묽게 끓였다. (3) 고기와 어패류를 이용한 미음으로는 고기와 어패류를 함께 푹 끓여 체에 받힌 후 묵은 간장으로 간을 하였으며, 뼈, 양, 도가니 등은 함께 만화로 오랫동안 끓여 체에 밭여 즙으로 짜거나 찹쌀이나 멥쌀로 함께 끓여 섞기도 하였다. 현대인들의 바쁜 일상에 일하면서 공부하면서 바로 먹을 수 있는 식사대체음식이 요구되는바 이에 전통음식이었던 미음, 미수, 고음류의 문헌고찰과 조리방법을 1차적인 연구로 시도하였다. 또한 고 조리서 속 전통음식을 재현한 문헌을 제시하였고 조리방법도 비교하였으며 전통음식을 조리과학적으로 실험한 연구동향을 살펴보았다. 후속 연구로 전통음식을 조리과학적인 실험연구로 전체적인 성분과 조리후의 영양 손실과 잔존여부, 실온상태에서의 보존료가 첨가되지 않은 기간동안의 부패 여부 등과 조리후의 항산화성 등을 실험하고 조리후의 관능평가를 거친 후 상품으로서의 식사대체음식 개발을 위한 기초연구자료로 삼고자 한다.

• 한국근적외분광분석학회:학술대회논문집
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• 한국근적외분광분석학회 2001년도 NIR-2001
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• pp.1256-1256
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• 2001

The physico-chemical and texture characteristics of meat determine the nutritional, technological and sensory quality. However, the analysis of meat quality requires expensive, laborious and time consuming analytical methods. The objective of this study was to evaluate NIR spectroscopy using transmittance for determining the moisture, fat, protein and total pigment content, the water holding capacity (WHC) and the toughness of beef meat. A total of 318 spectra were recorded from ground beef samples by a Feed Analyzer 1265 of Infratec. The samples were obtained from the Longissimus muscle of the 10$^{th}$ rib of yearling bulls, ground with an electrical chopper, vacuum packaged, aged during 7 days and frozen at -24$^{\circ}C$ until the analyses were done. Moisture content was measured by oven drying at 10$0^{\circ}C$, fat content was determined by Soxhlet extraction and protein content was estimated from nitrogen content using the Kjeldahl analysis. The total pigment content was determined by the method of Hornsey and the WHC using the method of filter paper press. The instrumental evaluation of texture (maximum load WB, maximum stress MS and toughness) was conducted in an Instron equipment with a Warner-Bratzler shearing device. This analysis was performed on a chop of 3.5 cm obtained from the longissimus of the 8$^{th}$ rib, aged during 7 days, kept frozen at -24$^{\circ}C$ and cooked before the analysis. Near infrared spectra were recorded as log 1/T (T=transmittance) at 2 nm intervals from 850 to 1050 nm using a Feed Analyzer 1265 of Infratec. Calibrations were performed with the WinISI software (vs. 1.02) using the MPLS method. To examine the effect of scatter correction o. derivation of spectra on the calibration performance, calibrations were calculated with the crude spectra or pretreated with different mathematical treatments (inverse MSC, SNVD) and/or second derivative operation. For chemical composition, the use of the scatter corrections improved the calibration statistics, in terms of lower SECV and higher $r^2$. In most of the variables, the use of the 2$^{nd}$ derivative improved the predictions, mainly when combined with the SNVD treatment. However, for predicting the texture traits, the best estimation was obtained from the crude spectrum. These results showed that the equations obtained for predicting moisture, fat and total pigments were very accurate, with $r^2$ being higher that 0.9. However, the prediction of the texture traits (WB, MS, toughness) from ground meat was poor.

• Journal of Animal Science and Technology
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• 제50권1호
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• pp.121-132
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• 2008

[Landrace×Yorkshire]×Duroc(LYD) 및 [Yorkshire×Berkshire]×Berkshire(YBB) 삼원교잡종과 흑색계 영국 Berkshire(BB; British berkshire), 가고시마 Berkshire(KB; Kagoshima Berkshire), [재래돼지×멧돼지(KNW; Native black pig×Wild boars)] 이원교잡종에서 생산된 돼지 100두를 생체중 110 kg 도달시 도축한 후 등심을 채취하여 분석하였다. 수분 함량은 KW, 조단백질은 YBB와 KW, 콜레스테롤 함량은 YBB가 다른 품종들보다 유의적으로 높았다(p<0.05). 다른 품종들에 비해 YBB는 보수력과 pH는 낮고, 전단가는 높았다(p<0.05). LYD에서 명도(L*)가 유의적으로 높게 나타났으며(p<0.05), 적색도(a*)와 파쇄성에서는 품종들 간에 유의적인 차이가 없었다(p>0.05). UFA/SFA와 EFA/UFA 비율과 EAA은 KW가 높게 나타났으나(p<0.05) SAAA는 유의적으로 낮았다(p<0.05). 총 아미노산 함량은 LYD와 BB가 각각 20.44%, 20.81%로 다른 품종에 비해 유의적으로 많았다(p<0.05). 신선육 상태에서 품종은 육색, 드립로스, 마블링과 전체적인 기호도에 영향을 미쳤지만(p<0.05), 조리육의 경우 풍미를 제외한 관능검사 항목에는 영향을 미치지 않았다(p>0.05).

• 한국축산식품학회지
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• 제31권6호
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• pp.807-816
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• 2011

The present study evaluated the difference in objective and subjective meat quality properties among the pure-breed boars of Duroc, Berkshire and Yorkshire. Ten longissimus lumborum (LD) muscles were collected from each breed after 24 h slaughtering. The breed type showed a significant effect on intramuscular fat content, moisture (p<0.01), pH, sarcoplasmic protein solubility and color (p<0.05), whereas cooking loss and Warner Blazer shear force (WBsf) did not differ among the breeds. The Yorkshire breed showed significant (p<0.05) lower sarcoplasmic protein solubility, pH and CIE $a^*$ value when compared with other breeds. The sensory panels identified Duroc as having greater overall acceptability and higher rating values than other breeds. The oleic acid content was significantly lower in the Berkshire (29.85 %) than in the Duroc (40.19 %) and Yorkshire breeds (38.18 %, p<0.05). The Yorkshire breed showed the most desirable ratio of polyunsaturated and saturated fatty acids (0.31) than the Berkshire (0.16) and Duroc breeds (0.15, p<0.05). 40 volatile compounds have been identified and quantified, while aldehydes were the most abundant among flavor substances. Aldehydes were negatively correlated with oleic acid content (p<0.05). Current data indicated that each breed had their own merits and deficiencies in terms of meat qualityThe Yorkshire breed showed a greater number of weak points. Furthermore, this study indicated that individual fat-driven flavor components were greatly influenced by fatty acid composition. The polyunsaturated fatty acids did not show any negative effects on meat flavor if cooked meats were consumed soon after cooking.

• 한국축산식품학회지
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• 제29권1호
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• pp.68-74
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• 2009

본 연구에서는 인진쑥의 건조 분말을 육성기 암퇘지 ($LY{\times}D$)에 평균체중이 75 kg일 때부터 출하시까지 50일간 처리하였을 때 식육의 이화학성분(일반성분, 식육 콜레스테롤, 지방산 조성, 아미노산 함량) 및 관능적 특성에 미치는 영향을 조사하기 위해 실시하였다. 일반사료에 인진쑥 분말을 급여사료 기준으로 CON(0%), T1(0.5%), T2 (1.0%), T3(1.5%)처리하였다. 수분, 단백질, 회분 함량 및 콜레스테롤 함량은 시험구간별 유의적인 차이가 나타나지 않았으나, 지방함량은 T2 및 T3구에서 유의적으로 낮게 나타났다(p<0.05). 모든 시험구에서 처리구간별 아미노산 조성의 유의적인 차이가 나타나지 않았다. 지방산 조성의 경우 포화지방산(SFA) 및 불포화지방산(UFA)의 합은 처리구간의 유의적인 차이가 나타나지 않았다. 하지만 T3의 linoleic acid, linolenic acid, 필수지방산(EFA) 및 다가불포화지방산(PUFA) 함량은 시험구중 가장 낮게 나타났으며 (p<0.05), T2의 arachidonic acid, EFA, PUFA의 함량은 시험구중 가장 높게 나타났다(p<0.05). 관능적 특성의 경우 모든 시험구에서 육색, 풍미, 연도, 다즙성 및 종합적인 기호도면에서 유의적인 차이가 나타나지 않았다. 이상의 결과 비육말기 암퇘지에 인진쑥의 급여가 지방성분의 감소 및 지방산의 변화를 가져왔으나, 아미노산의 함량 및 관능적특성에는 유의적 차이가 나타나지 않았다.

• Asian-Australasian Journal of Animal Sciences
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• 제17권4호
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• pp.485-490
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• 2004

An experiment was conducted to study the effect of feeding ammoniated wheat straw treated with and without HCl on meat quality and various sensory attributes of growing male buffalo (Bubalus bubalis) calves. Due to urea-ammoniation, the CP content of wheat straw increased from 2.90 to 6.96%. The addition of HCl along with urea during urea-ammoniation further increased the CP content to 10.09%. The proximate composition (% fresh basis) of psoas major, longissimus dorsi and semitendinosus were comparable among the groups. However, comparatively higher cumulative muscle mean protein and ash percentage and lower moisture percentage in groups II and III in comparison to group I indicated the desirable effect of feeding AWS and HCl-AWS. The cumulative muscle mean pH in group III (5.54) was comparatively lower than group I (5.65) and II (5.62). The cumulative group mean pH and water holding capacity (% water retained) in semitendinosus was comparatively lower than psoas major and longissimus dorsi. The cumulative muscle mean SSP (g%) was significantly (p<0.05) lower in group III (41.78) than group I (42.45). The cumulative group mean cooking loss (%) was significantly (p<0.01) lower in psoas major (31.61) and longissimus dorsi (29.78) than semitendinosus (35.10). The cumulative group mean SFV (kg/$cm^{2}$) of psoas major, longissimus dorsi and semitendinosus were 6.38, 6.32 and 6.56, respectively, being lowest in psoas major and highest in semitendinosus. However, the cumulative muscle mean SFV (kg/$cm^{2}$) in group I, II and III were 6.53, 6.56 and 6.17, respectively, being lowest in group III and highest in group II. The scores of the cooked (2% common salt) buffen for various sensory attributes viz. appearance, flavour, juiciness, texture, mouth coating and overall palatability were comparable among the groups. Results suggested that feeding of ammoniated wheat straw treated with and without HCl to growing male buffalo calves for 180 days had no adverse effect on the meat quality and various sensory attributes.

• 한국식생활문화학회지
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• 제28권1호
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• pp.78-88
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• 2013

Marinated beef galbi is a traditional Korean dish cooked with soy sauce, pear juice, onion, sesame oil, and sugar. However, there are many differences in beef galbi, including flavor and physicochemical aspects, depending on cooking conditions. Therefore, the physicochemical characteristics of marinated beef galbi prepared through various recipes was evaluated for its effects on pH, texture, aging, proteolysis, heating conditions, cooking time, and flavor compounds (pyrazines, IMPs, or FAAs). There were significant differences in salt concentration (0.8~3.03%), pH (4.89~6.22), and solid soluble contents (1.34-6.31 Brix) between recipes in this study. In the Pearson assay for sensory evaluation, overall preference correlated well with texture (a well-known sensory attribute in meat evaluation). Controlling the pH of meat through soaking in lemon solution, alkali water, phosphate, and baking powder solution, improved water holding capacity as much as 9 to 15% compared with the control. The myofibril index (MFI) of marinated meat stored at $4^{\circ}C$ increased 32% with 24 hours of aging and reached 39% at 48 hours of aging, and its fragmentation was observed through microscopy. SDS-PAGE showed hydrolysis of acid-soluble collagen by the pear juice, possibly related to meat tenderness. On the basis of surface temperature, the cooking time was estimated to be 8 minutes with pan heating at $170^{\circ}C$, 6 minutes at $270{\sim}300^{\circ}C$, and 4 minutes with charcoal at $700{\sim}900^{\circ}C$. Different pyrazine compounds, such as 2-methyl-3-phenylpyrrol(2,3-b) pyrazine (the typical product of the browning reaction) was mainly detected, and IMP (one of the main taste compounds in beef) was in higher amounts with the charcoal treatment, potentially related to its flavor preference among treatments. Our results demonstrate an effective case study and cooking system for beef galbi.