The study investigates the antioxidant activity and total flavonoid compounds in leaves crystal guava, a plant rich in vitamin C and high in antioxidant activity. The research involved maceration extraction of leaves cystal guava using methanol solvent, then fractionation with ethyl ...
A liquid chromatography/electrospray ionization mass spectrometry (LC/ESI-MS) method based on time-of-flight (TOF) MS with polarity switching and continuous exact mass measurement using a LockSpray ion source was developed for fast evaluation of the total flavonoid content in plants and foodstuffs. ...
of total flavonoid for dry edible jujube varieties was the highest,that for fresh and dry dual purpose jujube ones was the next,and the content of fresh edible ones the lowest.[Conclusion] The total flavonoid content of Yueguangzao was maximal,and it had a good potential in developing ...
These genes were induced under the stress conditions. Most genes were expressed at an early stage of the stress response. In addition, total flavonoid content increased after UV-irradiation. 展开 关键词: abiotic stress chalcone synthase flavonoid biosynthesis ...
Extraction method of flavone from bamboo's leaf and branch has been studied, content of total flavone and rutin in 10 kinds of bamboo sample was determined by spectroscopy and HPLC respectively, in HPLC seperation, a C 18 column was used, and the mixed solution of CH 3OH H 2O H 3PO 4...
of Callicarpa kwangtungensis Chun coincides with plant growth.It has a rule that total flavonoid content increases with the growth of plants.Order of Total flavonoids content in different organs is: leafsmall stem branchfruitrootStem trunk,and total flavonoids content in the leaves is significantly ...
Furthermore, real-time PCR corroborated the transcriptome results, indicating the decrease in flavonoid biosynthesis at midnight. The flavonoid profiles of Ginkgo leaves harvested at midday and midnight were compared, and the total flavonoid content decreased at midnight. A detailed analysis of individual...
Total anthocyanin, anthoxanthin and flavonoid contents in white outer-petal and yellow inner-petal gradually decreased during flower development, and were consistently higher in white outer-petal. Furthermore, the expression patterns of nine structural genes in P. lactiflora flavonoid biosynthetic pathway...
Results: The total phenol, flavonoid and tannin content were estimated to be 1.03%, 5.33% and 1.83% respectively. HPTLC studies revealed the presence of β-sitosterol, lupeol, rutin, ellagic acid, ferulic acid and quercetin in 50% ethano... G. Pandey,K. Verma,M Singh 被引量: 19发表: ...
The aim of this study was to determine the antioxidant activity, total phenolics, total flavonoid, proanthocyanidins, and anthocyanins content of eight berry species, namely serviceberry, gooseberry, blackberry, black chokeberry, bilberry, red currant, black currant, and cornelian cherry harvested in ...