나노리포좀으로 코팅된 Hemicellulase가 당근의 연화작용에 미치는 효과 = Effect of Liposome Coated Hemicellulase on Softening of a Carrot

다국어 초록 (Multilingual Abstract)

The objective is to investigate effect of liposome coated hemicellulose on softening of carrot. To encapsulate hemicellulose in nanoliposome, 2% hemicellulase and 2% lecithin were processed by using high-speed homogenizer (10,000 rpm, 3 min) and ultrasonification (200 W, 54%). The carrot were cut into cylinder type (3×1 cm) and then immersed in distilled water (DW, control), hemicellulase (He) and nanoliposome coated hemicellulose (He/NL) for 48 h at 4oC. The final concentration of hemicellulose is 1% (w/v). The droplets properties of He, NL, He/NL analyzed using zeta-sizer. Moreover, the carrots treated different immersed solutions were characterized by measuring hardness, color, microstructural observation and enzyme activity (glucose contents). For the results, hardness of carrot immersed in He or He/NL solution decreased after 48 h by 47% or 31% (outline of carrot) and 35% or 31% (center of carrot) respectively compared to control (7,240 g). The total color difference value of all samples increased over immersion time. For microstructural observation, cell was destroyed after 24 h at He solution. For the enzyme activity, glucose contents of carrot in He solution increased than it in He/NL at 0 h sample however the enzyme activity was no significant difference with immersion time.

참고문헌 (Reference)

1 유진균, "효소처리 가공이 당근(Daucus carota var. sativa)의 항산화 활성 변화에 미치는 영향" 한국식품영양과학회 42 (42): 262-267, 2013

2 심진기, "황련유래 단백질이 함유된 나노리포좀의 제조 및 특성" 한국공업화학회 17 (17): 52-57, 2006

3 김영숙, "헤미셀룰라아제를 첨가한 백련차 식빵의 품질 특성" 한국식품영양과학회 37 (37): 1294-1300, 2008

4 황선아, "재가노인의 연하장애 위험 실태와 영향요인" 한국노년학회 34 (34): 37-48, 2014

5 최희선, "농촌노인의 치아상태에 따른 건강상태 및 식이섭취 평가" 대한영양사협회 16 (16): 22-38, 2010

6 이승교, "경기지역 노인의 건강과 식생활관리 Ⅱ－75세 미만의 젊은 노인과 75세 이상 고령 노인 비교－" 한국지역사회생활과학회 17 (17): 141-154, 2006

7 Ogoshi H., "Utilization of fats and oils for dysphagic patients" 13 : 25-31, 2013

8 Lee HK., "The relationship between chewing ability and health status in the long-lived elderly of Kyungpook area" 16 : 200-207, 1999

9 Shin MO., "The effect of Dacus carota L. extracts on the fluidity of phospholipid liposomes" 30 : 646-650, 2001

10 Korean Statistical Information Service., "Statistical database: Population projections"

11 Lee JW., "Physicochemical characteristics of aged garlic added with enzyme and quality characteristics of pound cakes and cookies containing various levels of aged garlic" Chungnam National Univ. 2009

12 Kim KH., "Optimization for enzyme treatments on the texture and digestibility of vegetable foods" Chung-Ang Univ. 2014

13 강달원, "OECD 국가들의 인구구조의 변화에 따른 노인복지지출의 수렴현상에 관한 분석" 한국사회보장학회 26 (26): 61-90, 2010

14 OECD Statistics., "Health status"

15 Lim JA., "Functional properties and quality characteristics of proteolyzed textured soy proteins for the development of elderly foods" Chung-Ang Univ. 2014

16 Kim SJ., "Development of easily chewable and swallowable foods for elderly applying gelification" Sookmyung Univ. 2013

17 Choi KW., "Development blended diet for the elderly with imbalance of nutrition and dysphagia" Hanyang Univ. 2014

18 Sakamoto K., "Decreased hardness of dietary fiber-rich foods by the enzyme-infusion method" 70 : 1564-1570, 2006

19 Clark HM., "Age and sex differences in orofacial strength" 27 : 2-9, 2012

20 Brady D., "Advances in enzyme immobilization" 31 : 1639-1650, 2009

21 Jin BS., "A study on the characteristics and stability of liposome" 6 : 74-81, 2001

22 Jeong WH., "A study on isolation of Bacillus sp. 1-5 with high production of xylanase and cellulase and medium condition of its enzyme production" Konkuk Univ. 2000