• 제목/요약/키워드: Lotus (Nelumbo nucifera)

검색결과 86건 처리시간 0.026초

백련차 분말을 대체한 우리밀 식빵의 품질 특성 (Quality Characteristics of Domestic Wheat White Bread with Substituted Nelumbo nucifera G. Tea Powder)

  • 김영숙;김문용;전순실
    • 한국식품영양학회지
    • /
    • 제21권4호
    • /
    • pp.448-456
    • /
    • 2008
  • In this study, domestic wheat white breads were prepared with the substitution of 1.5, 3.0, 4.5, and 6.0% Nelumbo nucifera G. tea powder(NNTP). The samples and a control were then compared with regard to quality characteristics, including pH, total titratable acidity, fermentation power of dough expansion, specific volume, baking loss, moisture content, color, textural characteristics, external and internal surface appearances, and sensory qualities in order to determine the optimal ratio of NNTP in the formulation. As the NNTP contents increased, the pH of dough and bread, baking loss, and lightness decreased, whereas the total titratable acidity of dough and bread increased. The fermentation power of dough expansion increased with increasing incubation time. The NNTP samples evidenced significantly higher specific volume, greenness, yellowness, resilience, and crumb consistency than were observed in the control group. However, hardness and fracturability evidenced the opposite effect. The water content and uniformity of the crumb pores were highest at a substitution level of 1.5%, and were lowest at a level of 4.5%. Crumb color, flavor, and delicious taste decreased with increasing NNTP contents, whereas lotus leaf flavor, astringency, bitterness, and off-flavor increased. Density of the crumb pore and crumb springiness were not significantly different among the samples. Softness, chewiness, and overall acceptability were maximal with the 1.5% substitution, and were minimal in the 6.0% group. In conclusion, our results demonstrate that $1.5{\sim}3.0%$ NNTP may prove quite useful as a substitute for domestic wheat flour in the production of white bread, and may evidence favorable nutritional and functional properties.

백련(Nelumbo nucifera) 종자의 발아에 미치는 종피의 파상, 온도 및 황산처리 효과 (Effects of Scarification, Temperature and Sulfuric Acid Treatments on Seed Germination of White Lotus (Nelumbo nucifera))

  • 임명희;김병운;박용서;양승렬;송채은;허북구
    • 한국자원식물학회지
    • /
    • 제25권1호
    • /
    • pp.7-13
    • /
    • 2012
  • 연 종자의 발아 특성을 구명하기 위해 전남 무안산 백련 종자를 이용해 종피의 파상부위, 발아 온도, 황산용액 처리 농도 및 시간별에 따른 종자 무게 변화와 발아율을 조사하였다. 종자를 파상하지 않고 파종한 것은 15일째가 되어도 전혀 발아가 되지 않았다. 그러나 기부를 파상하여 $25^{\circ}C$에서 발아를 시킨 것은 6일 만에 100%가 발아 되어 가장 우수한 결과를 보였다. 종자를 물에 침적시켰을 때 물에 뜬 것(0.90 g)과 가라앉은 것(1.18 g) 모두 발아 되었으나 침적된 종자를 $25^{\circ}C$에서 발아 시켰을 때 발아세가 가장 좋았다. 황산처리는 80% 용액에서 40-160분간 침적처리 했을때 6일째에 100%가 발아해 가장 우수한 발아세를 나타내었다. 종자 채취 후 0개월, 12개월 및 24개월 된 것을 파종한 결과 발아세와 발아율에 차이가 없었다. 위와 같은 결과는 연의 종자번식에 도움이 될 것으로 사료된다.

연근음료의 영양학적 특징 및 흰쥐의 혈관개선에 미치는 효과 (Nutritional Contents of Beverage from Lotus Root and Evaluation of its Physiological Function in Aorta Relation)

  • 함태식;한종현;박성혜
    • 동의생리병리학회지
    • /
    • 제19권2호
    • /
    • pp.490-494
    • /
    • 2005
  • The purpose of this was investigate the possibility of medicinal plants application as an edible functional food resources. We arried out to develop a beverage by using Nelumbo nucifera and we examined the nutritional characterics. Also we examined the effects of drink on physiological function in aorta relation. Thus, the effect of developed beverage on phenylephrine induced contraction of isolated rat thoracic aorta. Contractile force was measured with force displacement thansducer under 1.5g loading tension. Brix, pH and titratable acidity of developed drink were 12.25%, 4.5 and 0.092%. The approximate nutritional composition of beverage was carbohydrate, 9.40%, crude protein, 0.30%, crude fat, 0.25% and ash, 0.15%. Also insoluble fiber and soluble fiber were 1.30%, 0.80%. Developed beverage contained Na(11.45 mg%), K(6.87 mg%), Ca(2.53 mg%). The contraction forces by injection of phenylephrine in isolated thoracic aorta were significantly law in each beverage treatment groups compared with control group. These results that developed drink with medicinal plants can be used as a functional material to decrease aorta contraction.

연화 및 연화주의 영양성분 및 항산화활성 (Nutritional components and antioxidant activities of Nelumbo nucifera Gaertner flower and its wine)

  • 곽우선;이선규;이기진;김계훈;김혜란;이효구;오지원;이옥환
    • 한국식품저장유통학회지
    • /
    • 제21권3호
    • /
    • pp.373-380
    • /
    • 2014
  • 본 연구는 연화 및 연화주에 대한 식품학적 기초자료를 제공하고자 연화 및 연화주의 영양성분, 항산화성분 및 다양한 모델에서의 항산화활성을 평가하였다. 연화 및 연화주의 수분함량은 각각 85.90 및 92.87%이었고, 조회분 함량은 1.04 및 0.15%, 조단백질 함량은 1.91 및 1.70%, 조지방 함량은 0.30 및 0.11%, 탄수화물 함량은 10.85 및 5.17%이었다. 연화 및 연화주의 총 아미노산 함량은 각각 2,168 및 6,341 mg/kg 이었고 필수 아미노산은 각각 485 및 2,246 mg/kg으로 전체 아미노산 함량의 약 26.0 및 35.4%이었다. 연화에는 fructose가 0.14 g/100 g 함유되어 있었고 연화주에는 glucose 1.85 g/100 g이 함유되어 있었으며 지방산 조성은 연화의 경우, palmitic acid(C16:0)가 약 38.63%로 가장 높았고, 연화주의 경우 oleic acid(C18:1n9c)가 약 76.24%의 비율로 가장 높았다. 무기질 함량은 연화(390 mg/100 g) 및 연화주(27.40 g/100 g)에서 모두 K이 가장 높았다. 유기산 함량은 연화에서 citric acid(2,222 mg/kg)가 가장 많았고, 연화주는 lactic acid(5,427.90 mg/kg)가 가장 많았다. 한편, 연화 에탄올 추출물 및 열수 추출물의 항산화활성은 연화주 동결건조물에 비해 높았으며 이는 총 페놀 함량의 결과와 유사한 경향을 나타냈다. ORAC value는 연화 에탄올 추출 및 열수 추출물에서 각각 $272.9{\pm}7.6$$275.3{\pm}2.6mM\;TE/g$을 나타낸 반면, 연화주 동결건조물에서는 $11.5{\pm}0.4mM\;TE/g$로 나타났다. 이상의 연구 결과로부터 연화 추출물은 다양한 항산화 평가모델에서 항산화 활성을 나타내었으며 전통방식에 의해 제조된 연화주의 항산화 활성은 연화에 함유된 일부 항산화 성분의 침출에 기인된 것으로 사료되며, 연화추출물 및 연화주는 체내 산화적 스트레스 저감에 일부 도움을 줄 것으로 판단되었다.

Lotus seedpods의 색소 특성과 견뢰도 분석 (Colorants Characteristics and Fastness Analysis of Lotus Seedpods)

  • 임지영;장정대
    • 한국의류산업학회지
    • /
    • 제16권3호
    • /
    • pp.492-498
    • /
    • 2014
  • Lotus(Nelumbo nucifera gaertn) is intimate plant to many people that it has clean and noble characteristics despite growth in the mud. Especially Lotus seedpods, byproduct of lotus, are rich in oligometric procyanidins and could be a new source of procyanidins. Procyanidins, also known as condensed tannins, are a class of polyphenols. In other words lotus seedpod contains plenty of tannins. Commonly tannins colorants could increase adsorption and fastness properties in fabric dyeing. This study was made to investigate colorants characteristics of lotus seedpod and various colorfastness properties of dyed silk fabrics. The wavelength of maximum absorption of lotus seedpod solution appeared at 273.5 nm from UV-vis spectrophotometer. From the results of FT-IR spectra measurements, IR absorption band of lotus seedpod colorants appeared at $3415cm^{-1}$, $2900cm^{-1}$ and $1620cm^{-1}$ by tannin structure. And tannin ingredient contents was the highest at pH 9 and flavonoid at pH 11. Lotus seedpod colorants showed relatively good affinity at pH 3 on silk fabrics and optimum dyeing temperature and time for silk was for 50 min, at $80^{\circ}C$. K/s of Light fastness according to different washing method was the highest at process including ironing and ${\Delta}E$ was the lowest. All of fastness(Light rubbing laundering perspiration dry cleaning) showed excellent results over 4 or 4-5 grades.

포장재 및 저장온도에 따른 건조 연근의 품질특성 (Effect of Packaging Materials and Storage Temperature on the Quality of Dried Lotus Root (Nelumbo nucifera G.))

  • 권오흔;류정아;강동균;최소영;이혜련
    • 한국식품저장유통학회지
    • /
    • 제17권6호
    • /
    • pp.777-783
    • /
    • 2010
  • 본 연구는 건조 연근을 포장방법(PE 필름, PP 필름, 마대, 종이봉투)과 저장온도(-5, 0, 10, $20^{\circ}C$)를 달리하여 품질의 변화를 알아보기 위해서 수분함량, 경도변화, 색도를 조사하였다. 저장기간 동안 수분의 함량은 PE, PP 포장재에서 종이봉투 및 마대 처리구 보다 수분함량이 높았으며, 저장온도가 낮을수록 수분함량이 낮게 나타났다. 한편, 마대와 종이봉투 포장재는 온도에 따 시료간의 수분함량 차이에 있어서 PE와 PP의 포장재와 달리 큰 차이를 나타냈다. 색상은 $-5^{\circ}C$에 저장한 마대 및 종이봉투는 저장 330일까지 h값이 안정적인 경향을 나타내었으나 0, $10^{\circ}C$, $20^{\circ}C$에서 저장한 마대, 종이봉투 포장재는 안정적이지 못한 경향을 나타냈다. 경도는 온도에 의해 약간 차이가 나지만 PE와 PP포장재가 다른 포장재보다 경도 값이 높았으며 또한 부패현상, 갈변반응 억제도 효과적인 결과를 나타냈다.

오미자 추출물을 첨가한 도라지와 연근 정과의 품질특성 (Quality Characteristics of Bellflower and Lotus Root Jeonggwa Added Omija (Schizandra chinensis Baillon) Extract)

  • 권후자;박찬성
    • 한국식품저장유통학회지
    • /
    • 제16권1호
    • /
    • pp.53-59
    • /
    • 2009
  • The purpose of this research is to develop bellflower (Platycodon grandiflorum) root and lotus (Nelumbo nucifera) root Jeonggwa as a health food. The quality characteristics of Jeonggwa to which 0-8% (w/w) of Omija (Schizandra chinensis Baillon) water extract was added were investigated. The moisture contents of bellflower root Jeonggwa were 14.9-18.0%, where as that of lotus root Jeonggwa was 6.9-8.4%. The acidity of bellflower root Jeonggwa was 0.477-0.585% and that of lotus root Jeonggwa was 0.513-0.572%; values increasing levels of Omija extract. The lightness (L) and yellowness (b) values of bellflower root Jeonggwa decreased with increasing amounts of Omija extract, and the lightness (L), redness (a) and yellowness (b) values of lotus root Jeonggwa decreased with increasing Omija extract concentration (p<0.05). In mechanical tests with bellflower root Jeonggwa, the highest values of hardness and strength were seen at 2% (w/w) extract, of cohesiveness were seen with 4-8%, of springiness with 2-6%, of gumminess with 6-8%, and of brittleness with 4-6% (all p<0.01). In mechanical tests with lotus root Jeonggwa, the highest values of hardness and springiness were at 0 and 6% extract, respectively, whereas strength, gumminess and brittleness were at 6-8% Omija extract (all p<0.01). In sensory evaluation, the highest acceptability of bellflower root Jeonggwa was seen with 4% extract and that of lotus root Jeonggwa was seen with 2% extract.

Effects of Lotus (Nelumbo nucifera) Leaf Hot Water Extracts on the Quality and Stability of Eggs using Ultrasonication Treatment during Storage

  • Lee, Jihye;Seo, Han Geuk;Lee, Chi-Ho
    • 한국축산식품학회지
    • /
    • 제40권6호
    • /
    • pp.1044-1054
    • /
    • 2020
  • This study was performed to investigate the effects of lotus leaf hot water extracts treatment on the quality and stability of eggs using impregnation treatment through ultrasonication during storage. A total of 480 eggs were categorized into four treatment groups (n=30 each)-non-treated (CON), soaked for 30 min in lotus leaf hot water extracts without ultrasonication (T1), sonicated in distilled water (T2), and sonicated in lotus leaf hot water extracts (T3)-and stored for 15 d at 30℃. The egg weight, Haugh unit (HU), egg grade, albumen height, yolk color, eggshell thickness, eggshell breaking strength, and weight loss were measured for egg quality assessment. 2-Thiobarbituric acid reactive substance (TBARS) and volatile basic nitrogen (VBN) contents were measured as stability indicators. Additionally, total phenolic contents (TPC), total flavonoid contents (TFC), and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity were evaluated. The HU, egg grade, albumen height, and yolk color of T3 were significantly higher than those of CON (p<0.05). No significant differences in eggshell thickness and eggshell breaking strength are observed among the groups. The weight loss of T3 was significantly lower than that of the other groups during storage (p<0.05). The application of lotus leaf hot water extracts also significantly reduced TBARS and VBN (p<0.05). The TPC, TFC, and DPPH radical scavenging activity of T3 were significantly higher than those of the other groups (p<0.05). These results suggest that lotus leaf hot water extracts may be useful as a natural ingredient for improving the quality and stability of eggs during storage.

다양한 부위의 연(Lotus) 열수 추출물의 항혈전 활성 (Anti-thrombotic Activities of Hot-water Extracts Prepared from Various Parts of Nelumbo nucifera Gaertner)

  • 안선미;성화정;김종식;박종이;손호용
    • 생명과학회지
    • /
    • 제28권10호
    • /
    • pp.1156-1162
    • /
    • 2018
  • 연(Lotus)의 항혈전 활성을 평가하기 위해, 연잎, 연자방, 연자육, 연자심, 연근 및 우절로부터 각각 열수 추출물을 제조하고, 이의 성분 분석, 항응고, 혈소판 응집저해 및 적혈구 용혈활성을 평가하였다. 연의 부위별 추출효율은 우절>연자심>연근>연잎>연자육>연자방의 순으로 나타났으며, 추출물들의 pH는 5.6~6.5, 산도는 0.06~0.20%로 다양하게 나타났다. Brix의 경우 연자육에서 70%로 가장 높게 나타난 반면, 연잎과 연자방에서는 분석한계(0.1%) 이하로 나타났다. TP 및 TF 함량은 연잎에서 179.7 및 68.5 mg/g으로 가장 높은 함량을 나타내었고, 총당은 연자육에서 873.0 mg/g, 환원당은 연잎에서 161.4 mg/g으로 가장 높게 나타났다. 한편 항응고 활성은 우절, 연잎 및 연자방 추출물에서 우수하였으며, 특히 연자방의 경우 TT, PT 및 aPTT 평가에서 무처리구에 비해 모두 15배 이상 연장된 강력한 활성을 나타내었다. 그러나, 혈소판 응집 저해 활성을 평가한 결과 연자심 추출물에서만 0.25 mg/ml 농도에서 무첨가구에 비해 25.1%의 혈소판 응집을 나타내어 강력한 응집저해 활성을 나타내었다. 인간 적혈구에 대한 용혈활성 평가결과, 연자육 추출물에서만 6.1%의 약한 용혈활성을 나타내었고, 나머지 부위 추출물에서는 용혈활성이 나타나지 않았다. 본 연구결과는 연 산업의 부산물인 우절, 연자방, 연자육 및 연자심이 혈전성 질환 예방 및 치료용 식의약품 소재로 개발 가능함을 제시하고 있다.

고지방 식이에 있어 체내 지질농도 및 건강 개선에 미치는 연근 추출물의 기능성 평가 (Functional Evaluation of Lotus Root on Serum Lipid Profile and Health Improvement)

  • 박성혜;현중순;신언환;한종현
    • 동아시아식생활학회지
    • /
    • 제15권3호
    • /
    • pp.257-263
    • /
    • 2005
  • In this study, lotus root(Nelumbo nucifera G.) which has been used in oriental medicine and folks remedy, was studied to apply to functional foods. We investigated the effects of the lotus root extracts(LTE) with hot water on the reduction of serum lipid and improvement of blood parameters in rats fed high fat diet for 5 weeks. Sprague-Dawley rats weigh $150g\pm15g$, were randomly assigned to 4 groups such as basal diet only(BDG), high fat diet without LTE(FDCG), high fat diet with $6\%$ LTE(FD6L), high fat diet with $12\%$ LTE(FD12L). The results of this study were as follows. Hematological data were not significantly different among 4 groups. Serum transferrin concentration and GOT activity were reasonable levels in FD6L and FD12L groups compared with FDCG group. Total cholesterol, LDL-cholesterol, triglyceride in serum and atherogenic index were remarkably reduced in LTE supplemented groups as compared with the control group. But HDL-cholesterol contents in FD6L and FD12L groups were significantly increased compared with that in control group. These results imply that lotus root extracts could be used as a potent food resources for decrease of serum lipid concentration.

  • PDF