• 동아시아식생활학회지
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• 제23권5호
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• pp.629-636
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• 2013

As a result of testing cream soup prepared by adding variable amounts of freeze-dried perilla leaves, the moisture content was lowest at 86.91 for the cream soup containing 20% perilla leaves, and the pH was highest at 7.26 for the control group. The brightness was highest at 78.08 for the control group not containing perilla leaves, and the redness was lowest at -12.73 for PS20. The redness increased significantly (p>0.001) with increasing amounts of perilla leaves. As the amount of perilla leaves increased, the viscosity of the cream soup decreased gradually. In terms of bacteria, no microorganism was found until day 1. The control group with 0% camellia leaves contained $4.5{\times}10^3$ CFU/mL on day 3 and all groups contained microorganisms on day 5. The control group showed the highest content of microorganisms at $3.1{\times}10^4$ CFU/mL; PS20 containing the largest amount of perilla leaves showed the lowest content of microorganisms on day 7 and on day 10. The DPPH free radical removal activity of cream soup increased significantly (p>0.001) with the increasing amount of perilla leaves. In the sensory test, the color was highest at 5.3 for PS15 containing 15% perilla leaves, and there was no significant difference compared to that of the 10% group. The group with the lowest color was PS20. The fragrance was also highest at 5.6 for PS15, and the taste and after-taste were highest for PS10 containing 10% perilla leaves. Overall, the preference was highest at 5.3 for PS15 and lowest at 3.6 for PS20, with the greatest content of perilla leaves. Considering these findings, the optimal content of perilla leaves in cream soup would be 10~15%. Adding more than 20% perilla leaves would make the soup less preferable to the control group not containing any perilla leaves.

• 동아시아식생활학회지
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• 제20권2호
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• pp.193-200
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• 2010

The study examined the preference and style of consumption of perilla leaves(Perilla frutescens var. japonica Hara), a popular food item in Korea, by consumers in the Daejeon area. Of the respondents 35.2% purchased perilla leaves in a large super-market limited to two to three bundles. Comsumer preferences were to consume the leaves raw or pickled with salt or soy sauce, or use as a fish soup ingredient. The majority of consumers aged 20~29-years-of age preferred to wrap sashimi with perilla leaves. As a side dish, regardless of age, consumers preferred to pan-fried perilla leaves with mincedmeat and perilla leaves.

• 한국토양비료학회지
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• 제49권5호
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• pp.517-523
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• 2016

The contents of functional components in the organically agricultural perilla leaves were compared with the perilla leaves grown in conventional condition. Perilla leaves used in the experiment were purchased or harvested from each three organic farm houses and conventional farm houses in Miryang city. The analyzed components included total phenol, total flavonoid, vitamin C, vitamin E, ${\beta}$-carotene, GABA, caffeic acid, rosmarinic acid, Total N, Zn, Fe, Ca, Mg, Na, K, and P. Organically grown perilla leaves had vitamin E 49% greater than the conventional perilla leaves, and 21% for TN, 29% for Ca, and 73% for Mg, while conventionally grown perilla leaves contained K 16% higher than organic ones. Other components were not showed the differences.

• 동아시아식생활학회지
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• 제10권5호
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• pp.445-454
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• 2000

This study was focused on the analysis of questionnaire that surveyed the preference and perception on perilla leaves, known as kkaennip. 31.6% of total respondents answered that they had purchased perilla leares once or twice a month, and the volume of their purchases was offen limited to one or two bundles. Among those respondents, 50.4% surveyed that they had usually taken less than ten leaves in each meal. In the preference survey, 59.2% of total subjects responded 'like' or 'very like' on perilla leaves, and 60.5% of those subjects who favorably responded liked the flavor of the perilla leaves. On the other hand, 51.2% showed unfavorable responses due to the concern of agricultural chemicals. The favorite dishes using perilla leaves were 'kkaennip kimchi'. 'kkaennip ssam'and'kkaennip jon'in the order. The perceptions on the kkaennip kimchi in the market were considered as 'convenient'. 'not affectionate', 'fast', 'expensive' etc.

• 동아시아식생활학회지
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• 제18권3호
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• pp.376-383
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• 2008

The aim of this study was to determine the optimum amount of perilla leaves to add to rice flour in the preparation of Sulgidduk(perilla leaf rice cake). By increasing the perilla leaf level in the formulation, the moisture contents of samples increased ($42.06{\sim}48.17%$), and their L-values decreased. The control and 16% perilla leaf Sulgidduk had higher a-values than the other samples, and the 8% perilla leaf Sulgidduk had the highest b-value. According to the mechanical evaluation results, hardness, gumminess, chewiness, and fracture decreased with increasing amounts of added perilla leaf. However, the springiness of samples during storage did not differ significantly according to the level of added perilla leaves. From the sensory evaluation results, the 12% perilla leaf sample received the highest overall-acceptability scores. In conclusion, according to its sensory and mechanical qualities, the optimal Sulgidduk formulation consisted of 12% perilla leaves added to rice flour.

• Journal of Biosystems Engineering
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• 제28권6호
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• pp.497-504
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• 2003

The objectives of this study were to develop a harvesting gripper for perilla leaves and test its performance, which was a partial work of the automated perilla leaves harvesting system development. The results of this study could be summarized as the followings: The shear forces for harvesting the perilla were measured. The measured results showed that the average shear force required was 12.13N for cutting the petioles attached to the perilla stalks, and the maximum of 17.42N. The inner diameter of air cylinder used was 6mm and the air pressure was maintained as 0.7㎫ during the tests. The time required for cutting perilla leaves could be adjusted by the control program and cutting operation could be done within 1- 10 seconds. The performance tests were conducted to harvest the perilla leaves by the gripper developed. The average success rates of cutting were 72.2％ for the first test, 78.5％ for the second, and 74.2％ for the last. The perilla leaves were not damaged by the gripper The whole system operation could be finished within three seconds except the delay time for dropping harvested leaves.

• 한국환경농학회지
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• 제29권4호
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• pp.417-420
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• 2010

The rust fungi are biotrophic fungal pathogens that cause serious disease on Perilla leaves in Korea. The effect of some commonly used chemical preservatives (sorbic acid, D-sorbitol, propionic acid and benzoic acid) against Perilla rust was investigated in this study. Results of this investigation showed that all the preservatives were effective against Perilla rust except benzoic acid. There was no growth of rust spores on the Perilla leaves treated with 0.1% of preservative even after 21 days of preservation. However, 0.01% of preservative also showed remarkable reduction of rust spores on the Perilla leaves as compared to the control groups. Thus, the results of this study indicated that the chemical preservatives used might be useful to control the growth of rust fungi on Perilla leaves.

• 한국식품영양과학회지
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• 제40권2호
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• pp.267-273
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• 2011

기능성 소재로서의 들깻잎 분말의 이용가능성을 알아보기 위해 들깻잎 분말 0, 5, 10 및 15% 첨가한 파운드케이크를 제조하여 품질 특성을 조사하였다. 반죽 및 파운드케이크의 pH는 들깻잎 분말 첨가에 의해 감소하였고, 굽기손실률은 첨가량에 따른 유의차가 나타나지 않았다. 높이는 들깻잎 분말의 첨가량이 증가할수록 감소하는 경향을 보였으며, 무게는 대조군의 값이 가장 높았지만 시료간의 유의차이는 나타나지 않았다. 파운드케이크의 색도 측정 결과는 L(lightness) 값과 b(yellowness)값에서 crust와 crumb 모두 들깻잎 분말 첨가량이 증가할수록 유의적으로 감소하였고, a(redness)값은 crust가 들깻잎 분말 첨가량이 증가할수록 유의적으로 감소하였지만, crumb은 대조군의 값이 가장 높았고 첨가군에서는 첨가량이 증가할수록 증가하는 것으로 나타났다. 파운드케이크의 관능검사 결과 들깻잎 분말 첨가는 색, 향미, 맛, 촉촉함, 전반적인 기호도를 향상시키는 긍정적인 영향을 미치나 10% 이상의 너무 많은 들깻잎 분말 첨가는 관능적인 기호도를 오히려 떨어뜨리는 것으로 나타났으며, 들깻잎 분말 5% 첨가군의 선호도가 가장 좋아 파운드케이크의 품질 및 관능적 특성을 고려한 들깻잎 분말 첨가량은 5% 첨가군이 최적 조건일 것으로 판단된다. 물성 측정 결과는 들깻잎 분말 첨가량이 증가함에 따라 경도는 증가한 반면, 탄력성, 응집성은 감소하였고, 검성과 씹힘성은 시료 간 유의적 차이를 보이지 않았으며, 저장 7일에는 들깻잎 분말 첨가에 따라 일정한 경향을 나타내지 않았다. 저장함에 따라 노화도는 증가하였는데, 들깻잎 분말 무첨가군의 노화도가 296.36%로 가장 낮았으며, 들깻잎 분말 첨가에 따라 5% 첨가군 306.44%, 10% 첨가군 334.47%로 증가하는 경향을 보이다가 15% 첨가군에서는 320.83%로 다소 감소하였다. 항산화 활성은 들깻잎 분말 첨가량이 증가할수록 유의적으로 증가하였으며, 저장에 따라 감소하는 경향을 보였다.

• 한국식품저장유통학회지
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• 제11권1호
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• pp.28-33
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• 2004

깻잎을 이용한 건강 식품을 개발하고자 먼저 깻잎의 주산지인 금산에서 5월 온실재배한 깻잎과 8월 노지재배한 깻잎들의 품질특성과 향기성분을 조사하였다. 시료깻잎 모두 4.0%의 조단백질과 0.8%의 조지방을 함유하고 있었고 플라보노이드의 함량은 온실재배 깻잎 25.2%, 노지재배 깻잎 26.5%로 시료깻잎간에 큰 차이는 나타나지 않았으며 조사포닌 함량도 2.7%와 2.8%로 비슷하였다. 시료깻잎의 효소 활성은 오직 알칼리성 단백질 분해효소 활성만이 8월 노지재배 깻잎에서만 물 추출물 7.1 unit, 에탄을 추출물 11.8 unit을 보였고 기타 효소 활성은 없었다. 8월 노지재배 깻잎의 조직감 특성으로 먼저 견고성과 탄력성 등은 잎의 상층부와 중층부 보다 잎받침을 포합하는 하층부에서 높았고 응집성은 하층부가 약간 약하였으며 5월 온실재배 깻잎은 씹힘성이 다소 낮았을 뿐 8월 노지재배 깻잎과 비슷하였다. 5월 온실재배와 8월 노지재배 깻잎에는 1-octen-3-ol, linalool, $\beta$-caryophyllene, $\alpha$-caryophyllene, $\alpha$-famesene, perilla ketone, nerolidol, eugenol, $\alpha$-cadinol등 14종∼15종의 향기성분을 함유하고 있었고 주요한 향기성분은 perilla ketone 이었다.

• 한국조리학회지
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• 제17권2호
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• pp.209-220
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• 2011

본 연구에서는 다양한 효능과 기능성 및 향균작용이 있는 깻잎을 생면에 첨가하여 최적의 조리적용을 연구하고자 하였다. 반죽의 수분함량 측정결과는 생 깻잎 즙을 첨가한 반죽은 첨가량이 많을수록 수분함량이 높게 나타났다. 동결건조 깻잎 분말의 첨가량이 증가 될수록 수분함량이 감소되었다. 반죽의 pH의 결과는 시료간에 유의적인 차이를 보이며 첨가량이 많아질수록 증가하였다. 반죽 색도의 결과는 a, b값 모두 생깻잎의 첨가량이 증가할수록 유의적으로 감소하는 경향을 보였다. 동결건조한 깻잎을 첨가한 생면의 L값은 첨가량이 증가할수록 유의적으로 감소하는 경향을 보였다. 생깻잎을 첨가한 반죽의 RVA의 분석결과는 생깻잎을 첨가함에 따라서 글루텐이 감소함에 따라 점도가 감소하는 것으로 보여진다. 동결건조 분말을 첨가한 반죽의 RVA의 분석결과는 동결건조 깻잎분말을 첨가한 반죽의 경우 첨가량이 증가함에 따라 Initial pasting tempo가 유의적으로 증가하는 경향을 보였으나 5%와 7%는 유의적을 차이를 보이지 않았다. 동결건조 분말을 첨가함에 따라 값이 감소하는 경향을 보였다. Minimum viscosity는 동결건조 깻잎분말은 첨가함에 따라 유의적으로 감소하는 경향을 보였다. 반죽의 WRC의 측정 결과는 생잎을 첨가한 파스타 반죽과 동결건조한 깻잎 분말을 첨가한 반죽의 수분 흡수력은 첨가량이 증가할수록 유의적으로 감소하는 경향을 보였다.