• 제목/요약/키워드: mixed-frequency

검색결과 888건 처리시간 0.025초

혼합용매를 이용한 진생베리 추출물 최적 공정 개발 및 추출물의 진세노사이드 분석 (Process Optimization of Ginseng Berry Extract Using Mixed Solvent and its Ginsenoside Analysis)

  • 하유진;김미리;유선균
    • 한국산학기술학회논문지
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    • 제16권11호
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    • pp.7794-7800
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    • 2015
  • 진생베리에 포함이 되어 있는 진세노사이드들은 인체에 유용한 다양한 생리기능물질을 포함한 것으로 알려졌다. 특히 진생베리는 진세노사이드 Re가 다량으로 함유된 것으로 알려 졌으나 추출공정은 비교적 연구가 이루어지지 않았기 때문에 본 연구에서는 진생베리로부터 복합 용매인 주정과 정제수를 이용하여 최적 공정 조건 확립을 수행하였다. 진생베리 추출물 제조를 위해서 건조 진생베리 분말 10 g를 부직포에 담아 250 mL 추출용 둥근 플라스크에 넣고 150 mL 용매를 넣어 내용물이 완전히 잠기게 한 후에 플라스크를 냉각 순환 수조에 연결을 하여 환류 추출하였다. 추출 과정은 주정과 정제수의 혼합비율, 복합용매의 추출 온도, 추출 시간 및 추출 회수에 따라 수행하였다. 추출 후 진세노사이드 Re, Rg1, Rd 및 조 진세노사이드의 함량 및 수율을 비교하였다. 최적 추출조건으로 주정 및 정제수 의 비율은 70% 대 30%, 추출온도는 $80^{\circ}C$, 추출 시간은 4시간, 추출 횟수는 2회로 결정되었다. 최적 추출 공정 조건에서 총 진세노사이드 함량은 건조 진생베리 g 당 약 88.6 mg이었다. 주요 진세노사이드의 분포는 Rb1이 5.3%, Rc가 5.2%, Rd가 14.3%, Re가 51.5%, Rf가 8.1%, Rg1이 15.7%이었다. 전체 추출 진세노사이드 중에 protopanaxatriol 계통의 진세노사이드가 약 80%를 차지하였다.

우리나라 야생잡초 참외의 자생지 분포지역 및 생태 (Distribution of Habitats and Ecology of Weedy Melons (Cucumis melo var. agrestis Naud.) in Korea)

  • 이우승
    • 원예과학기술지
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    • 제31권5호
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    • pp.652-655
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    • 2013
  • 한국에서 야생(잡초)참외의 자생분포지역은 서해의 옹진군으로부터 남으로 보령 서산(태안), 서천, 군산, 부안, 고창, 영광, 무안, 신안, 해남, 진도, 완도, 고흥, 여수, 하동, 남해, 고성, 통영, 거제시 등의 해안 또는 도서 지방과 제주시, 북제주군 및 남제주군이었다. 이들 지역에서 농경지 또는 그 부근에서 현존하고 있음을 확인하였다. 야생참외가 자생하고 있는 장소는 농경지 및 그 부근이었다. 지방별 자생하고 있는 농경지내용은 대두밭에서 가장 많았다. 다음은 녹두밭, 고구마밭, 고추밭, 참깨밭, 목화밭, 땅콩밭 순위의 빈도였다. 조 밭 주변, 개울가의 논두렁, 밭두렁, 수박밭, 옥수수밭, 농가인접의 채소밭, 감귤밭, 퇴비무더기, 폐농지, 도로변 및 기타 농가정원에서도 자생하고 있었다. 대체로 키가 낮은 작물의 경작지이면서 광선공간이 있고 다소 건조한 곳에서 자생이 많았다. 과실의 숙기는 7월 상순에서 10월 하순까지였는데 9월의 응답빈도가 많았다. 과실이 성숙되면 꼭지가 빠지는데 이는 자생에 효율적인 특성으로 추정되었다. 과실의 용도는 장난감과 식용이 많았다. 과실을 사람이나 가축이 먹고 분으로 배설된 것을 밭거름으로 사용하면 거기서 발아되어 결실되고 익은 과실은 추수기에 사람이나 가축이 다시 먹게 되어 세대가 유지되는 것으로 추정되었다.

찹쌀 전분의 페이스팅/페이스트 특성 및 냉해동 안정성에 대한 잔탄검-로커스트콩검 혼합물의 영향 (Impact of Xanthan-locust Bean Gum Mixtures on Pasting/Paste Characteristics and Freeze-thaw Stabilities of Waxy Rice Starch)

  • 김현석
    • 한국식품과학회지
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    • 제46권5호
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    • pp.593-600
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    • 2014
  • 찹쌀 전분과 검(XAT, LBG, 및 XAT:LBG) 혼합물의 페이스팅 특성과 이들 페이스트의 점탄특성 및 냉해동 안정성을 조사하여 일반 쌀 전분(20% 수준의 아밀로오스 함유)의 물성을 대체할 수 있으며 낮은 냉해동 안정성을 개선할 수 있는 찹쌀 전분-검 혼합물의 조성을 제시하고자 하였다. 찹쌀 전분은 검(XAT 및 LBG) 및 검 혼합물(XAT:LBG)에 의해 건조중량 대비 19:1의 비율로 대체하여(총 고형분 함량 5%, w/w) 페이스팅 점도 특성을 조사하였을 때 찹쌀 전분-검 혼합물 내의 XAT 농도가 낮아질수록 찹쌀 전분의 페이스팅 온도에 근접하였다. 최고점도는 찹쌀 전분-XAT 혼합물에서 가장 낮았으며 XAT와 LBG를 75:25의 비율의 검 혼합물로 찹쌀 전분을 대체하였을 때(X075L025)가 가장 높았다. 또한 찹쌀 전분-XAT:LBG의 최고점도에서 최종점도 사이의 온도 프로파일 범위에서 찹쌀 전분만을 이용하였을 때보다 높은 수준의 페이스팅 점도를 나타내었다. 찹쌀 전분-검 혼합물 페이스트의 점탄특성은 찹쌀 전분-XAT:LBG (X050L050 및 X025L050) 페이스트들에 한해 5 rad/s의 높은 진동수에서 일반 쌀 전분 페이스트의 저장탄성률과 유사해졌다. 손실탄성률은 모든 찹쌀 전분-검 혼합물 페이스틀이 찹쌀 전분과 일반 쌀 전분들 보다 높은 수준을 나타내었다. 냉해동 안정성과 관련하여 일반 쌀 전분 페이스트에 비해 찹쌀 전분 및 찹쌀 전분-검 혼합물들이 높은 냉해동 안정성을 나타내었다. 이 중 찹쌀 전분-XAT와 찹쌀 전분-XAT:LBG (X075L025)가 7회의 냉해동 순환처리에도 syneresis 현상이 관찰되지 않았다. 모든 결과들을 고려할 때 일반 쌀 전분을 대체할 수 있는 찹쌀 전분-검 혼합물은 XAT와 LBG를 건조중량 비율로 50:50으로 혼합한 검 혼합물을 찹쌀 전분의 건조중량의 5% 수준으로 대체하는 것으로 판단되었다.

가정간편식 제품 개발을 위한 소비자의 요구도 및 선택속성의 중요도-만족도 분석 (A Study on Domestic Consumers' Needs and Importance-Performance Analysis of Selective Attributes for Developing Home Meal Replacement (HMR) Products)

  • 박성배;이현준;김혜영;황혜선;박대섭;홍완수
    • 한국식품조리과학회지
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    • 제32권3호
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    • pp.342-352
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    • 2016
  • Purpose: This study conducted an Importance-Performance Analysis (IPA) of selective attributes of Home Meal Replacement (HMR) as well as it examined the consumers' needs and willingness to buy HMR products to explore the need for developing more HMR products. Methods: This study was conducted among domestic consumers living in Seoul and its metropolitan areas, in the age range from the 20s to the 50s, and who had experience in purchasing HMR products. From the 490 surveys retrieved, 472 (96.3%) valid surveys were analyzed. Results: The analysis of the frequency of consuming HMR products showed the following results: 247 respondents answered '1-3 times a month' (52.3%); 167 respondents stated '1-2 times a week' (35.3%). With respect to the reason of purchase, 'simplicity of the recipe' was the most common, accounting for 188 respondents (39.8%), followed by 'time efficiency' accounting for 172 respondents (36.4%). Analysis of the demand for bibimbap (mixed rice) HMR products showed that 'chicken bibimbap' had the highest preference with 5.32 points, followed by 'bulgogi bibimbap' (5.08 points), and 'kimchi bibimbap' (4.96 points). In the case of HMR products that need to undergo further development, 'low-sodium products' received the highest points of 5.41 points, followed by 'small packaged products' (5.05 points), and 'functional products' (4.98 points). The factor analysis of the 13 selective attributes showed that they can be divided into 3 factors. The IPA analysis of the selective attributes of HMRs showed 'hygiene', 'taste', 'easy to go packaging', 'convenience in intake', and 'accessibility' in the 1st quadrant. In the 2nd quadrant, 'price' and 'freshness' were shown as the factors. In the 3rd quadrant, 'easy to serve', 'familiar food menu', and 'consistent menu' were shown as the leading factors, and in the 4th quadrant, 'saving labor' was the only factor. Conclusion: Based on these results, the research concludes that with respect to developing HMR products, there is a high demand for low sodium, low calorie, small packaged products; thus, showing the need to develop various HMR products for customer satisfaction. Furthermore, it shows that there is a need to consider developing HMR products that can maintain freshness at an affordable price.

국내(國內) 의류(衣類)브랜드 네임의 네임 스펙트럼 유형(類型)및 특성(特性) - 여성복(女性服)과 남(男).여(女) 공용복(共用服)을 중심(中心)으로 - (The types of name spectrum and their characteristics of domestic fashion brand names - focusing on women' wear and bisex wear -)

  • 권혜숙;오연정
    • 패션비즈니스
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    • 제9권5호
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    • pp.65-76
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    • 2005
  • The purpose of this research is to investigate the types of name spectrum and their characteristics of domestic fashion brand names focusing on women' wear and bisex wear, and also studied the differences based on the sex of brand target. 224 of women's wear brands and 99 of bisex wear brands were selected from ‘2002 Korea Fashion Yearbook’ under the criterion that their brand names were made in Korea and they should engage in business in 2002. The data analysis quatitatively evaluate the frequency and qualitatively evalute the image of brand product and the meaning of brand name. The result as follows; 1.The domestic fashion brands for women's and bisex wear appeared to have to three types of name spectrum ; the descriptive name was the most frequently used one, then followed by the arbitrary, and the suggestive name. There were only one coined brand name and no generic brand name. 2. The characteristics of descriptive brand name was that, in most cases, it used the name of designer. For the suggestive brand name, it implied the features or the image of its products. For the arbitrary brand name, some bear the ideology or the foundation belief of company itself. 3. For women's wear, the discriptive name appeared most, and followed by arbitrary, and the suggestive name. For bisex wear, the suggestive brand name appeared most, and followed by arbitrary name, and the discriptive name. 4. For descriptive brand name, the names of designer were used most in women's wear brands. Otherwise, the brand names that directly described the image or the characteristics of products were used most in bisex wear brands. For suggestive brand name, soft and feminine images were prevailed in women's wear brand names but comfotable and casual images were dominent in bisexsual brand names. For arbitrary brand name, as the various types of languages were combined and the various meanings and words were mixed, and imply the various meanings in both cases, it was hard to classify the characteristics into some categories.

단량체 및 무기질 filler 조성 변화에 따른 복합레진의 유변학적 특성 (RHEOLOGICAL PROPERTIES OF RESIN COMPOSITES ACCORDING TO THE CHANGE OF MONOMER AND FILLER COMPOSITIONS)

  • 이인복;이종혁;조병훈;손호현;이상탁;엄정문
    • Restorative Dentistry and Endodontics
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    • 제29권6호
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    • pp.520-531
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    • 2004
  • The aim of this study was to investigate the effect of monomer and filler compositions on the rheological properties related to the handling characteristics of resin composites. Methods. Resin matrices that Bis-GMA as base monomer was blended with TEGDMA as diluent at various ratio were mixed with the Barium glass (0.7 um and 1.0 um), 0.04 um fumed silica and 0.5 um round silica. All used fillers were silane treated. In order to vary the viscosity of experimental composites, the type and content of incorporated fillers were changed, Using a rheometer, a steady shear test and a dynamic oscillatory shear test were used to evaluate the viscosity ($\eta$) of resin matrix, and the storage shear modulus (G'), the loss shear modulus (G"), the loss tangent ($tan{\delta}$) and the complex viscosity (${\eta}^*$) ofthe composites as a function of frequency ${\omega}{\;}={\;}0.1-100{\;}rad/s$. To investigate the effect of temperature on the viscosity of composites, a temperature sweep test was also undertaken. Results. Resin matrices were Newtonian fluid regardless of diluent concentration and all experimental composites exhibited pseudoplastic behavior with increasing shear rate. The viscosity of composites was exponentially increased with increasing filler volume%. In the same filler volume, the smaller the fillers were used, the higher the viscosities were. The effect of filler size on the viscosity was increased with increasing filler content. Increasing filler content reduced $tan{\delta}$ by increasing the G' further than the G". The viscosity of composites was decreased exponentially with increasing temperature.

「여(女)」 관련 어휘의 사용실태 - 国研「ことばに関する新聞記事見出しデ?タベ?ス」를 분석대상으로 (The study analyzed a diachronic distribution, social meanings and social evaluations of ONNA : 'Headline Database of Newspaper Articles' by KOKKEN were used as research data.)

  • 오미선
    • 비교문화연구
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    • 제29권
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    • pp.341-366
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    • 2012
  • 'Headline Database of Newspaper Articles' is a database which contains about 141,500 newspaper articles from 1949 to March, 2009. They are collected from two perspectives; 'language' and 'language life' by KOKKEN. There were 3312 newspaper articles (about 2.34%) which included the word ONNA at 'Headline Database of Newspaper Articles'. The number of newspaper articles related to ONNA started to increase in 1975 but they decreased afterwards. They increased rapidly in 1980 and maintained the condition. However, they started to decrease rapidly in 1990 and maintained the decreased condition. They increased rapidly again in 2004 and 2007. The main causes of rapid increase were the commercial message of instant noodles "I am the one who is making. I am the one who is eating." in 1975, newspaper articles related to "Starting of full-scale studies on female language" in 1980, comments of "active women" and "men's crime" related to a murder case of an elementary school student in Sasebo City and mixed attendance books in 2004, a comment of "Women are machines which give birth to babies" in 2007. Those six causes of rapid increase suggested that the perception of gender such as 'Men need to work outside and Women need to do housework and take care of child' which was fixed until then was changing and becoming a stereotype of virtual reality rather than reality. The vocabulary related to ONNA appeared 3411 times among 3312 newspaper articles which included ONNA. Typical forms of the vocabulary related to ONNA were and . They appeared 2390 times and occupied 70% of the whole data. (3411 times) The form of ONNANOKO among the vocabulary related to ONNA appeared 113 times and occupied a high rate. ONNANOKO(113) and other words such as SHOJO(115), JOJI(28), YOJO(9) (152 in total) implied that appearing of young women at newspaper articles were increasing. Also, the vocabulary related to 'female language' such as ONNAKOTOBA(28) ONNANOKOTOBA(10) and a woman's heart such as ONNAGOKORO(35) and ONNANOKIMOCHI(34) appeared frequently. The vocabulary related to JOSEI were divided into <$JOSEI^{**}$> and <$^{**}JOSEI$>. <$JOSEI^{**}$> were mainly related to an occupation. <$^{**}JOSEI$> were mainly used to express women by regional groups such as or combined with modifiers to express women such as . In case with modifiers, WAKAIJOSEI appeared 35 times and showed the highest frequency. It had negative evaluations in many cases. The vocabulary related to JOSI appeared on the form of <$JOSI^{**}$> and mainly associated with 'a girl's school' and 'a female student'.

Effects on postoperative nausea and vomiting of nefopam versus fentanyl following bimaxillary orthognathic surgery: a prospective double-blind randomized controlled trial

  • Choi, Eunhye;Karm, Myong-Hwan;So, Eunsun;Choi, Yoon Ji;Park, Sookyung;Oh, Yul;Yun, Hye Joo;Kim, Hyun Jeong;Seo, Kwang-Suk
    • Journal of Dental Anesthesia and Pain Medicine
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    • 제19권1호
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    • pp.55-66
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    • 2019
  • Background: Postoperative nausea and vomiting (PONV) frequently occurs following bimaxillary orthognathic surgeries. Compared to opioids, Nefopam is associated with lower incidences of PONV, and does not induce gastrointestinal tract injury, coagulopathy, nephrotoxicity, or fracture healing dysfunction, which are common side effects of Nonsteroidal anti-inflammatory drugs. We compared nefopam- and fentanyl-induced incidence of PONV in patients with access to patient-controlled analgesia (PCA) following bimaxillary orthognathic surgeries. Methods: Patients undergoing bimaxillary orthognathic surgeries were randomly divided into nefopam and fentanyl groups. Nefopam 120 mg or fentanyl $700{\mu}g$ was mixed with normal saline to a final volume of 120 mL. Patients were given access to nefopam or fentanyl via PCA. Postoperative pain intensity and PONV were measured at 30 minutes and 1 hour after surgery in the recovery room and at 8, 24, 48, and 72 hours after surgery in the ward. The frequency of bolus delivery was compared at each time point. Results: Eighty-nine patients were enrolled in this study, with 48 in the nefopam (N) group and 41 in the fentanyl (F) group. PONV occurred in 13 patients (27.7%) in the N group and 7 patients (17.1%) in the F group at 8 hours post-surgery (P = 0.568), and there were no significant differences between the two groups at any of the time points. VAS scores were $4.4{\pm}2.0$ and $3.7{\pm}1.9$ in the N and F groups, respectively, at 8 hours after surgery (P = 0.122), and cumulative bolus delivery was $10.7{\pm}13.7$ and $8.6{\pm}8.5$, respectively (P = 0.408). There were no significant differences in pain or bolus delivery at any of the remaining time points. Conclusion: Patients who underwent bimaxillary orthognathic surgery and were given nefopam via PCA did not experience a lower rate of PONV compared to those that received fentanyl via PCA. Furthermore, nefopam and fentanyl did not provide significantly different postoperative pain control.

장서각 소장 사찬발기를 통한 조선왕실의 사찬음식 연구 - 탄일, 출산, 가례, 상례를 중심으로 - (A Study on Joseon Royal Cuisine through Sachanbalgi of the Jangseogak Archives - Focusing on Royal Birthday, Child birth, Weddings and Funerals-)

  • 정혜경;신다연;우나리야
    • 한국식생활문화학회지
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    • 제34권5호
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    • pp.508-533
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    • 2019
  • This study investigated the Sachanbalgi, which record the royal feasts given by the royal family of the Joseon Dynasty of Korea. These records are contained within the Gungjung Balgi, which recorded the types and quantity of items used in royal court ceremonies. The Eumsikbalgi is the general name for the records of food found within this document. Using these Eumsikbalgi, and in particular the Sachanbalgi, this study investigated the food eaten and bestowed by the Joseon royal family. The Sachanbalgi describes four categories or occasions of feasts: royal birthdays, childbirth, royal weddings, and funerals. These records allow us to reconstruct who the attendees were and what the table settings and food were for instances not directly indicated in oral records, books, or other documents. The food at these Sachan (feasts) was diverse, being related to the specific event, and its contents varied based on the position of the person who was receiving the food. Usually, Bab (rice) was not found at a Sachanbalgi, and only on two occasions were meals with Bab observed. Specifically, it was served with Gwaktang (seaweed soup) at a childbirth feast. There were seven kinds of soups and stews that appeared in the Sachanbalgi: Gwaktang, Yeonpo (octopus soup), Japtang (mixed food stew), Chogyetang (chilled chicken soup), Sinseonro (royal hot pot), and Yukjang (beef and soybean paste). Nureumjeok (grilled brochette) and Saengchijeok (pheasant), and Ganjeonyueo (pan-fried cow liver fillet) and Saengseonjeonyueo (pan-fried fish fillet) were eaten. Yangjeonyueo, Haejeon, Tigakjeon (pan-fried kelp) and other dishes, known and unknown, were also recorded. Boiled meat slices appeared at high frequency (40 times) in the records; likewise, 22 kinds of rice cake and traditional sweets were frequently served at feasts. Five kinds of non-alcoholic beverages were provided. Seasonal fruits and nuts, such as fresh pear or fresh chestnut, are thought to have been served following the event. In addition, a variety of dishes including salted dry fish, boiled dish, kimchi, fruit preserved in honey, seasoned vegetables, mustard seeds, fish, porridge, fillet, steamed dishes, stir-fried dishes, vegetable wraps, fruit preserved in sugar, and jellied foods were given to guests, and noodles appear 16 times in the records. Courtiers were given Banhap, Tanghap, Myeonhap, wooden bowls, or lunchboxes. The types of food provided at royal events tracked the season. In addition, considering that for feasts food of the royal household was set out for receptions of guests, cooking instructions for the food in the lunchbox-type feasts followed the cooking instructions used in the royal kitchen at the given time. Previous studies on royal cuisine have dealt mostly with the Jineosang presented to the king, but in the Sachanbalgi, the food given by the royal family to its relatives, retainers, and attendants is recorded. The study of this document is important because it extends the knowledge regarding the food of the royal families of the Joseon Dynasty. The analysis of Sachanbalgi and the results of empirical research conducted to reconstruct the precise nature of that food will improve modern knowledge of royal cuisine.

국내 주요 토마토 주산지에서 발생하는 가루이류 발생현황 (Occurrence Status of Whitefly Populations in Major Domestic Cultivation Areas of Tomatoes)

  • 서미혜;조영식;양창열;윤정범
    • 한국응용곤충학회지
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    • 제59권4호
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    • pp.411-416
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    • 2020
  • 2015년부터 2018년까지 시설하우스에서 토마토 재배기간인 11월부터 이듬해 5월까지 충남 논산, 부여, 전북 익산에서 가루이의 종류와 발생 현황을 조사하였다. 반면 5월부터 10월까지는 억제재배를 하는 전북 장수지역에서 조사를 수행하였다. 시기별로 가루이를 채집하여 동정한 결과 온실가루이(Trialeurodes vaporariorum)와 담배가루이(Bemisia tabaci)의 발생이 확인되었다. 주로 온실가루이와 담배가루이가 혼재되어 있는 경우가 많았으며 두 종 중 담배가루이의 발생이 높게 나타났다. 가루이의 발생은 3월 하순부터 증가하기 시작하여 5월에는 밀도가 급격하게 증가하였고 수확기가 끝나는 시점에서는 밀도가 가장 높았다. 따라서, 시설하우스에서 가루이의 효율적 방제를 위해서는 촉성재배는 3월 상순부터, 억제작형은 6월 상순부터 예찰하고 밀도가 증가하기 전에 초기 방제하여야 할 것이다.