• Korean Journal of Food Science and Technology
• /
• v.40 no.3
• /
• pp.303-310
• /
• 2008

This study was performed to verify the effects of encapsulation against oil oxidation. Thiobarbituric acid (TBA) values of samples were compared during storage at $60^{\circ}C$, indicating that the encapsulated avocado oil had lower TBA values than the free avocado oil. Microcapsules consisting of a whey protein isolate (WPI)-only wall system had slightly improved oxidative stability; however, spray-dried particles containing a high proportion of maltodextrin (MD) clearly offered better protection from oxidation than the other forms of encapsulation. The chlorophyll (Chl) content of the encapsulated avocado oil was higher than that of the free oil sample. When compared to the control, all wall systems protected the change of the chlorophyll content storage. No large differences were observed between the encapsulated powders according to the various wall materials. The color of the encapsulated oil changed from green to yellowish-green, indicating the formation of pheophytin from chlorophyll. The yellowish color of the oil correlated with a reduced total Chl content. In conclusion, encapsulation with spray drying for avocado oil could lead to improved stability during storage with respect to oxidation and the preservation of chlorophyll.

• The Monthly Diabetes
• /
• s.240
• /
• pp.30-31
• /
• 2009

혈당이 오르는 것을 방지하기 위해서 당뇨인들은 당분이 들어 있는 음식을 자제하고, 조리 시 설탕대용식품을 사용하기도 한다. 영양이 풍부한 반면 당분이 비교적 적은 아보카도는 당뇨병환자에게 맞춤형 식품이다. 아보카도는 반개를 먹었을 때 160kcal를 내지만, 100g 당 포함하고 있는 당분함량은 2.7g로 적다. 뿐만 아니라 염분함량이 낮고 콜레스테롤이 없어 당뇨병에 여러모로 좋은 식품이다. 조금은 생소하고 낯설은 영양만점 '아보카도'를 소개하고자 한다.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.40 no.7
• /
• pp.919-927
• /
• 2011

Avocado (Persea americana Mill., Family Lauraceae) is an important subtropical crop in the Americas where it has been cultivated for several thousand years. To investigate the bioactivities of avocado, which acts on bone formation, we prepared methanol extracts from the sarcocarp, peels, and seeds of avocado. The methanol extracts of peels and seeds showed higher bone-forming activity than avocado sarcocarp extracts accompanied by MC3T3-E1 osteoblast proliferation and alkaline phosphatase (ALP) activity. Additionally, the extracts of sarcocarp and peel from avocado also decreased tartrate-resistant acid phosphatase (TRAP) activity against differentiation of osteoclasts, derived from mouse bone marrow macrophages. The hexane fraction from avocado peels showed strong bone-forming activity accompanied by osteoblast proliferation and ALP activity (170.7${\pm}$8.4%), and the ethyl acetate fraction from avocado peel decreased TRAP activity (5.2${\pm}$0.3%) and differentiated osteoclasts at 50 ${\mu}g$/mL. Therefore, avocado is expected to be a natural source for developing medicinal agents to prevent bone-related diseases, such as osteoporosis, by increasing osteoblast differentiation and reducing osteoclast activity.

• Journal of the Korean Applied Science and Technology
• /
• v.41 no.1
• /
• pp.36-45
• /
• 2024

This study was to investigate the effect of manufacturing an avocado oil-added formulation and applying it to damaged hair. The experimental materials were prepared by adding avocado oil contents of 0 g, 3 g, 6 g, and 9 g to the perm base agent. It was applied to 4 damaged hair samples with the prepared formulation for comparative analysis. Tensile strength, absorbance using methylene blue, and gloss were measured as measurement methods for the effect on damaged hair. Statistical analysis was performed for the reliability of the research results. As a result of the tensile strength measurement, it was found that the tensile strength of the sample applied with the formulation containing 6 g and 9 g to the sample increased, affecting damaged hair. As a result of the absorbance analysis using methylene blue, it was found that the absorbance of all samples applied by adding oil decreased, affecting damaged hair. The gloss measurement result was found to affect damaged hair when 6 g and 9 g were added. The conclusion is that avocado oil affects damaged hair, so it is thought that it will have an effect of improving hair.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.37 no.3
• /
• pp.269-275
• /
• 2008

The avocado is a widely grown and consumed fruit that is high in nutrients and low in calories, sodium, and fats. In this study, antioxidant activities and induction of apoptosis by methanol extracts from sarcocarp, seed and peel of avocado were investigated in vitro. Contents of total polyphenols in methanol extracts from sarcocarp, seed and peel were 13.89, 137.12 and $223.45{\mu}g/mg$ respectively. Radical-scavenging activities of the methanol extracts were examined by using ${\alpha},{\alpha}$-diphenyl-${\beta}$-picrylhydrazyl (DPPH) radicals and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) assay. The methanol extracts from the peel of avocado showed higher scavenging activities against DPPH, ABTS than those from sarcocarp and seed. Apoptosis in MDA-MB-231 cells mediated by the methanol extracts of avocado was associated with the increase of activation of caspase-3 and caspase-3 target protein, PARP. Therefore, with more researches on identification and action mechanism of active compounds, the methanol extracts from peel and seed of avocado is expected to be a natural source for the developments of functional food and medical agents to prevent human breast cancer.

• 베이커리
• /
• no.7 s.348
• /
• pp.161-161
• /
• 1997

• Journal of the Korean Society of Radiology
• /
• v.14 no.5
• /
• pp.553-561
• /
• 2020

In this study aims to investigate the radiation protection effect of avocado peel extracts on the Sprague-Dawely rats. 52 male rats were randomly classified into 4 groups. NC Group was a normal control group, PA Group was a group injected avocado peel extracts, IR Group was irradiated group, and lastly PA+IR Group was set as an irradiated group after injected of avocado peel extracts. Avocado peel extract was administered orally at 200 mg/kg once a day for 14 days before irradiation, and the radiation dose was systemically irradiated with 6 MV X-ray of 7 Gy. On the 4 and 21 days after irradiation, the experimental animals were sacrificed to evaluate the change in blood cell composition, spleen index, and histopathological evaluation of the liver and small intestine. As a result, the PA+IR Group showed a significantly greater recovery of lymphocytes(p<0.01), red blood cells(p<0.01), and platelets(p<0.05) than the IR Group. It was also confirmed that the activation of Superoxide Dismutase(SOD) was further increased. Histopathologically, observed that nuclei aggregation and cytoplasmic expansion were slightly reduced in the PA+IR Group in the liver. and the damage was significantly reduce(p<0.01) in the change of villi length due to damage to the small intestine cells. Based on the above results, avocado peel extract can be expected to act as a radiation protection agent that can reduce damage to blood cells and major organs caused by irradiation.

• Journal of the Korean Applied Science and Technology
• /
• v.36 no.1
• /
• pp.248-257
• /
• 2019

On this study, we have observed the change of the gel nail morphology as the time elapse and measured the surface roughness/volume, moisture content/purcutaneous moisture vaporizing amount of the nail surface before gel nail treatment and after gel nail removing of the 100%acetone remover, 5%acetone remover and 0%acetone remover and the avocado non acetone remover for the comparison of the effect on the nail surface and the degree of the removing of the gel nail of the removers as the acetone contents. The removing ability were the order of 100%acetone remover, avocado non acetone remover, 5%acetone remover and the 0%acetone remover. There were no statistical significance difference in the nail surface roughness comparision before and after gel nail removing in 5%acetone, 0%acetone and avocado non acetone, and there was no statistical significance difference in the nail surface volume comparision before and after gel nail removing in 0%acetone. We measured the moisture content of the nail surface and the purcutaneous moisture vaporizing amount before gel nail treatment and after gel nail removing, resulted that, the decrease of the moisture content of the nail surface after removing the gel nail is the minimun and the increase of the purcutaneous moisture vaporizing amount of the nail surface after removing the gel nail is the minimun at the case of 0%acetone. In conclusion, 5%acetone remover and 0%acetone remover is possible to use as the gel nail remover and they had revealed that there was the least harmful effect on the nail. We hope that this study is utilized to the development of the non acetone remover and the basic research of the nail beauty industry.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.18 no.2
• /
• pp.329-335
• /
• 2023

Avocado, a superfood selected by Time magazine and one of the late ripening fruits, is one of the foods with a big difference between local prices and domestic distribution prices. If this sorting process of avocados is automated, it will be possible to lower prices by reducing labor costs in various fields. In this paper, we aim to create an optimal classification model by creating an avocado dataset through crawling and using a number of deep learning-based transfer learning models. Experiments were conducted by directly substituting a deep learning-based transfer learning model from a dataset separated from the produced dataset and fine-tuning the hyperparameters of the model. When an avocado image is input, the model classifies the ripeness of the avocado with an accuracy of over 99%, and proposes a dataset and algorithm that can reduce manpower and increase accuracy in avocado production and distribution households.

• Journal of Periodontal and Implant Science
• /
• v.36 no.1
• /
• pp.179-194
• /
• 2006

목적 : 이번 연구에서는 일반인의 치주질환 치료제에 대한 인식도를 설문을 통하여 알아보았고 현재 국내에서 시판중인 치주질환, 치료제를 의약품 검색 사이트를 이용하여 조사하였다. 조사한 치료제의 효과를 해당 약품의 성분과 관련된 문헌을 고찰함으로써 알아보았다. 재료 및 방법 : 일반인의 치주질환 치료제에 대한 인지도를 조사하기 위하여 열 개의 문항으로 구성된 설문을 실시하였다. 설문은 한림대학교 성심병원 산업의학과에 정기 건강검진을 위하여 내원한 사람들을 대상으로 하였다. 보건복지부에 등록된 치주질환 치료제를 조사하기 위하여 킴스 온라인 홈페이지를 이용하였다. 의약품 종합 검색 페이지에서 '추가조건 입력하기'의 '복지부 분류'란에 '231. 치과-구강용약'의 조건을 주어 검색하였다. 검색 결과로부터 경구 치주질환 치료제를 구별하여 정리하였다. 치주질환 치료제와 관련된 문헌을 조사하기 위하여 미국 국립도서관의 검색 서비스인 Pubmed 홈페이지를 이용하였다. 검색어는 각 지료제의 성분명과 치은염, 치주염, 치주질환의 조합어를 사용하였다. 결과 : 설문에 참여한 사람은 100명이었다. 이 중 85%는 치주질환이라는 말을 들어본 적이 있었으며 72%는 자신의 치주건강상태가 좋지 않다고 생각하였다. 14%는 치주질환 치료제를 복용한 경험이 있었다. 61%는 치주질환 치료제에 관한 정보를 광고로부터 획득하였다. 향후 치주질환 치료제의 선택과 관련하여 35%는 치과의사에게, 24%는 의사에게 그리고 20%는 약사에게 문의하겠다고 대답하였다. 치주질환 치료제는 70개였다. 이 중 38개는 아스코르빈산 제제, 25개는 옥수수 불검화 추출물 제제, 5개는 저용량 독시싸이클린 제제였고 아보카도-콩 불검화물과 동양의학적 제제가 각각 한 개였다. 결론 : 치주질환 치료제에 대한 일반인의 인지도는 비교적 낮았으며 정보를 획득하는 주요 경로는 광고였다. 일반인들이 치주질환 치료제를 선택하는 데 치과의사는 큰 역할을 하지 못하였다. 시판중인 치주질환 치료제는 70개였다. 치료제는 다섯 개의 군으로 분류할 수 있었으며, 아스코르빈산 제제, 옥수수 불검화 추출물 및 저용량 독시싸이클린이 대부분이었고 아보카도-콩 불검화물과 동양의학적 제제는 각각 한 개였다. 옥수수 불검화 추출물과 저용량 독시싸이클린은 임상 연구에 의해 그 효과가 입증되었으나 아스코르빈산 제제는 임상 연구가 없었으며 따라서 이상적인 제제라고 할 수 있다. 기존의 문헌에 기초하여 볼 때 옥수수 불검화 추출물과 저용량 독시싸이클린만이 전통적인 치주질환 치료법(SRP)과 병행하여 치료제로 사용될 수 있다.