• 한국식품영양과학회지
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• 제30권6호
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• pp.1108-1114
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• 2001

호박을 이용한 반고형 이유식을 제조하기 위하여 단호박과 늙은호박을 각각 마쇄하거나, 찌거나, 데친 후 각각을 체에 내리고 가열하여 puree를 만들고, 이들의 수분함량, 점도, 색도, $\beta$-carotene 함량, riboflavin 함량, ascorbic acid 함량을 측정하고, 관능검사를 실시하였다. 단호박퓨레가 호박퓨레보다 수분 함량이 적었고, 점도, Hunter L, a, b 색도, $\beta$-carotene 함량, riboflavin 함량은 높았다. 관능검사를 실시하여 단맛과 전체적인 선호도가 높은 찐 단호박 퓨레를 이유식의 주원료로 선택하였다. 변성전분의 혼합비율이 증가할수록 호화개시온도는 낮아지고 최고점도는 증가하였다. 찐 단호박 퓨레에 변성전분, 쌀가루, 유제품을 혼합하여 제조한 이유식은 살균과정에서 색도의 변화는 적었으나 점도가 증가하였는데 변성전분 3%를 혼합한 이유식은 점도가 안정하였다. 전체적인 선호도가 찐 단호박퓨레 40%, 쌀가루 7%와 전지분유 3%, 물 50%를 혼합한 단호박 이유식이 가장 높았다.

• 한국식품영양학회지
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• 제12권5호
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• pp.508-512
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• 1999

In order to qualify and quantify carotenoid pigment of pumpukin were analyzed by HPLC column chromatography and spectrophotometry. Eightyseven percent of total carotenoids in the pumpkin was in the fiber amounting 65.33mg%. however flesh and skin contained 6.61 and 3.31mg% respectvely. A silica gel column chromatography of the carotenoids produced 2 different peaks. The components eluted in peak II showed blue color when treated with hydrochloric acid. The fact suggested it contained epoxide and the component in peak II was a monol. By the separation with HPLC. $\alpha$ and $\beta$-carotene were the major compounds in the carotenoids. In fiber the total $\beta$-carotene content was 1.6 times higher than in the flesh and skin. The fiber contained less unidentified compounds than other part which contained 27.3~32.8%.

• 동아시아식생활학회지
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• 제14권4호
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• pp.355-362
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• 2004

Studies on extraction and color stability of carotenoids from astringent persimmon(Diospyros kaki) were performed to provide the basic information for the utilization of persimmon pigment as a new source of natural food colorant. The major carotenoids in astringent persimmon were beta-cryptoxanthin, lycopene and beta-carotene. Beta-cryptoxanthin was the first major pigment and lycopene the next. Total carotenoid content in persimmon calculated as beta-carotene equivalent was 107.4 $\mu\textrm{g}$/g. The data indicated that the astringent persimmon was a good source of carotenoid pigment. The physical and chemical stabilities of carotenoid from astringent persimmon were investigated at various conditions of temperature, pH and antioxidant. The effects of oxygen and light on the stability of carotenoid pigment has been investigated. The factors that cause the discoloration were visible light, temperature above 60, pH below 5 and oxygen. Especially, the carotenoid pigment was very sensitive to light and oxygen. Carotenoid stability was much improved with increasing nitrogen concentration in the atmosphere. Persimmon pigments have been found to be most stable at 5∼10. And tocopherol was the most effective inhibitor of the pigment discoloration.

• 한국식품과학회지
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• 제46권2호
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• pp.213-218
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• 2014

본 연구에서는 ${\beta}$-carotene 강화쌀의 생체이용율과 영양기능성을 모종쌀과 비교하였다. 실험동물은 수컷 Wistar 흰쥐를 사용하였고, Harlan 2018S-diet를 기본 식이로 하였다. 실험 식이는 낙동쌀(모종쌀), ${\beta}$-carotene 강화쌀(GM쌀) 및 Harlan 2018S-diet(대조군)으로 하였고, 실험군당 11마리씩 배정하였다. 실험식이에 함유된 전분 함량은 모종쌀과 GM쌀로 각각 30% 대체하였고, 펠렛 식이로 재성형하여 4주 동안 급여하였다. 실험기간동안 GM쌀의 급여는 모종쌀과 비교시 흰쥐에게 식이섭취량이나 체중 증가와 같은 일반적인 성장에 부정적인 영향을 주지 않았다. 간, 신장, 비장, 체지방 등의 6개 장기의 무게를 측정한 결과 GM쌀은 모종쌀 식이 섭취군과 비교시 유의적인 차이가 없었다. 간지질중 총콜레스테롤(TC) 함량은 GM쌀 식이군이 모종쌀 식이군 보다 유의하게 낮았고, 분변지질(TC, TG) 농도 역시 GM쌀 식이군이 모종쌀 식이군에 비해 낮았다. 혈청생화학치와 혈구세포의 변화를 살펴보면 전반적으로 두 실험군(모종쌀, GM쌀) 간의 차이가 없었으나, 혈청지질 농도는 GM쌀 식이군이 모종쌀 식이군 보다 낮았고, 공복혈당은 GM쌀 식이군이 모종쌀 식이군 보다 통계적으로 유의하게 낮았다. 위의 결과들을 종합하면 GM쌀은 모종쌀에 비해 생체이용 측면에서 성장률과 장기무게 및 체지방 등에서 차이가 없었고, 영양기능 측면에서는 배변량을 증가시키고, 간과 분변 및 혈중 지질농도를 낮추며, 공복혈당치를 유의하게 감소시키는 것으로 나타났다.

• Nutritional Sciences
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• 제3권2호
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• pp.98-102
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• 2000

The purpose of this study was to evaluate the antioxidative potential of Korean wild leaf vegetables. Antixoidative activity of chamchwi (Aster scaber), nurucchwi (Pleurospermum kamtschaticum) sumssukbujengee (Aster glheni), moshidae (Adenophora remotiflora), spinach (Spinacia oleracea)k was evaluated as a reference for commonly used synthetic antioxidant, BHA. We compared the content of $\beta$-carotene, vitamin C and vitamin E as antioxidant vitamins, and total phenolic compound including flavonoid as non-vitamin compounds in Korean wild leaf vegetables and spinach. Thiobarbituric acid (TBA) value of Pleurospermum kamtschaticum, Aster scaber and Adenophora remotiflor was only 18-20% of control. TBA value of Aster glheni was 40% of control. On the basis of moles, the high level of vitamin C is the major contributor to the total antioxidant vitamin contents of Pleurospermum kamschaticum and Adenophora remotiflor. The amounts of flavonoid as well as total phenolic compound in Pleurospermum kamtschaticum and Adenophora remotiflor were also much higher than those of spinach. The amounts of flavonoid as well as total phenolic compound in Aster glheni were much higher than those of spinach while total amount of antioxidant vitamins was significantly lower than that of spinach. These results suggest that Pleurospermum kamtschaticum and Adenophora remotiflor could have antioxidative potency in food. Because of the higher content of antioxidant vitamins in Pleurospermum kamtschaticum and Adenophora remotiflor, these Korean wild leaf vegetables may have preventive effects on degenerative diseases, which have been associated with free radical mediated events.

• 한국산림과학회지
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• 제95권2호
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• pp.209-215
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• 2006

We investigated antioxidant capacity in leaves of 14 coniferous trees under field conditions. We focused on understanding the species characteristics on antioxidant systems and screening the coniferous tree species with the best antioxidant systems using their characteristics. The antioxidant capacity of 14 coniferous trees was divided into three groups. First group was Thuja orientalis and Chamaecyparis obtusa and those species had the highest content of ${\beta}$-carotene and xanthophyll. Second group, C. obtusa and Juniperus chinensis, used antioxidant enzymes to mitigate stress. C. obtusa represented high activity at superoxide dismutase (SOD), glutathione reductase (GR), and peroxidase (POD), and J. chinensis exhibited high activity at SOD, POD, catalase (CAT). Third group employed antioxidant such as ascorbic acid and ${\alpha}$-tocopherol. The antioxidant content of T. orientalis was the highest while that of Pinus parviflora and C. obtusa were the lowest. Few species belonged in three groups simultaneously, and most species belonged in at least one or two groups. In summary, we proposed that C. obtusa and T. orientalis had the highest antioxidant capacity while P. parviflora and P. desiflora for. multicalus had the lowest antioxidant capacity.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2000년도 춘계수산관련학회 공동학술대회발표요지집
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• pp.381-381
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• 2000

Lectin binding assay was conducted on 3 A. tamarense isolates (AT-A, AT-2 and AT-6). Fatty acid composition of all 3 isolates was analyzed, and total carotenoid content and $\beta$-carotene were also determined. AT-A and AT-2 treated with different lectins in this study showed the positive response, whereas potentially toxic AT-6 did not bind DBA lectin, regardless of different growth phase, but conjugated ConA, PNA, RCA, SBA, UEA and WGA. It is possible that DBA is a desirable method for rapid and easy discrimination of highly toxic A. tamarense. AT-A, AT-2 and AT-6 comprised saturated fatty acids (49.0-61.9%), monounsaturated fatty acids (8.0-20.5%) and polyunsaturated fatty acids (23.2-30.5%). In particular, 22:6 (n-3) polyunsaturated fatty acid in AT-6 had a high abundance, compared with AT-A and AT-2. However, carotenoid content and $\beta$-carotene were not contributed to discriminate each isolate. Due to variability in biochemical composition at different isolates, possibly DBA and 22:6 (n-3) polyunsaturate fatty acid provide a good information for discrimination of AT-6.

• 한국식품영양학회지
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• 제26권1호
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• pp.125-131
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• 2013

본 연구에서는 참나물의 처리 조건에 따른 이화학적 특성 및 항산화 활성의 변화를 살펴보기 위하여 씻기, 데치기 및 찌기에 따른 특성 변화를 살펴보았다. 원료 참나물의 조단백질 함량은 24.43%, 조지방은 9.02%, 회분은 17.74% 그리고 식이섬유는 33.50%이었다. pH는 5.99~6.49 범위로 데친 참나물이 높았고, 찐 참나물이 5.99로 낮았다. 색의 L 값은 열처리에 따라 감소하였으며, 녹색을 나타내는 -a값은 데친 참나물이 크게 나타났다. ${\beta}$-Carotene은 원료에 비해 씻은 참나물은 18%, 데친 참나물은 54% 그리고 찐 참나물은 10% 증가하였다. 엽산은 씻은 참나물, 원료, 찐 참나물 및 데친 참나물이 각각 848.87, 772.16, 271.54 및 260.74 mg/100 g으로 씻은 참나물이 높게 나타났다. 주요 무기성분은 K, Ca, Na 및 Mg이었으며, K이 93.13~244.38 mg/100 g으로 가장 높았다. 총 polyphenol 및 flavonoid 함량, DPPH radical 소거능 모두 데친 참나물, 찐 참나물, 씻은 참나물, 원료 참나물 순으로 높았으며, 비가열 처리보다 가열 처리에서 항산화 성분 및 생리활성이 높게 나타났다.

• 생명과학회지
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• 제29권2호
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• pp.231-238
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• 2019

본 연구는 사방오리 추출 분획물의 항산화 활성을 검증하기 위하여 시행되었다. 사방오리는 메탄올(MeOH) 분획에 가장 높은 총 페놀화합물($452.80{\pm}7.01{\mu}g$ gallic acid equivalents/mg)을 그리고 에틸에세테이트(EA) 분획 에 가장 높은 총 플라보노이드 함량($112.29{\pm}11.14{\mu}g$ rutin equivalents/mg)과 가장 높은 총 항산화 활성($936.23{\pm}0.07{\mu}g$ ${\alpha}$-tocopherol equivalents/mg)을 가지고 있었다. 사방오리의 용매 추출분획물에 대한 항산화 활성은 아스코빅산 등 표준 물질과 비교하여 1,1-diphenyl-2-picrylhydrazyl (DPPH) 라디칼 소거능 측정, 슈퍼옥사이드 음이온 라디칼 소거능 측정, ${\beta}$-carotene-linoleate 에세이, 환원력 측정, ferric thiocyanate법으로 지질과산화 억제력 측정 그리고 금속 킬레이팅능 측정 등 다양한 항산화 활성을 측정하였다. $250{\mu}g/ml$ 농도의 사방오리 EA와 MeOH 분획은 DPPH 라디칼 소거능 측정에서 각각 92.43와 89.20% 항산화 활성을 가지고 있었다. $50{\mu}g/ml$의 EA분획은 72.49% 슈퍼옥사이드 음이온 라디칼 소거능을 보였으며 이는 gallic acid의 소거능(60.88%)보다 조금 높았다. 또한 ${\beta}$-carotene-linoleic acid 시스템에 의한 과산화 억제능 조사에서 0.5과 1 mg/ml 농도의 EA 분획이 각각 73.45와 73.29% 억제능을 보였다. 항산화 활성은 EA 분획 > BuOH 분획 > DCM분획 > HX분획 순 이였다. 이상의 본 연구 결과에서 사방오리는 천연 항산화제제 개발을 위한 용이하게 접근 가능한 잠재적인 자원으로 판단된다.

• 한국식품조리과학회지
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• 제9권3호
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• pp.181-186
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• 1993

Potato and carrot are the main sourses of vitamin C and vitamin A each. As a folk ramedy, potato-carrot mixtures have been used to cure a stomach ulcer in Korea. To investigate the effects of carrot juice on the browning of potato juice, we examined the brewing in various ratio of two juices. We also investigated the role of potato juice in the carotene oxidation of carrot juice. Delta "L" values of potato juice were abruptly decreased after 5 min. reaction and they were very different from the juice mixture of potato and carrot. Those containing higher ratio of potato were decreased greatly. In blanching treatment to eliminate the effect of the enzymes in potato and carrot, delta "L" values of cooked potato were decreased a little but those of cooked carrot were decreased greatly. To investigate the fact that the inhibitory effect of carrot juice in potato browning was due to the dilution of polyphenolics of potato juices by carrot juice mixing, we added H20 equivalent to carrot water content to potato juice. The diluted sample showed less decreasing pattern than nondiluted sample. We also added appropriate amount of ${\beta}$-carotene to the same samples. Delta "L" values of with added B-carotene were more slowly decreased than those of without added B-carotene.