scholarly journals Determination of Total Phenolic Content of The Stem Bark Extract of Nyirih (Xylocarpus granatum J. Koeing) Using UV - Vis Spectrophotometry Method

2021 ◽  
Vol 8 (3) ◽  
pp. 12-17
Author(s):  
Aswar Aswar ◽  
Abd. Malik ◽  
La Hamidu ◽  
Ahmad Najib
Keyword(s):  
Sodium Carbonate ◽  
Spectrophotometric Method ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Stem Bark ◽  
Bark Extract ◽  
Total Phenolic ◽  
Xylocarpus Granatum ◽  
Stem Bark Extract

Nyirih is a plant from the Meliaceae family with the Latin name Xylocarpus granatum J.Koeing, this nyirih spreads in tropical waters and does not cluster in certain areas. This study aims to determine the total phenolic content of the stem bark extract of nyirih (Xylocarpus granatum J.Koeing) using the UV-Vis spectrophotometric method. The stem bark extract of nyirih (Xylocarpus granatum J. Koeing) was obtained with maceration method using 96% ethanol solvent. Determination of total phenolic content based on the Folin-Ciocalteau method, where the addition of 7% sodium carbonate provides an alkaline atmosphere that will produce phenolic ions. Furthermore, it will reduce Follin to form a blue complex. At a maximum wavelength of 755 nm, the results showed that the average total phenolic content of the stem bark extract of nyirih (Xylocarpus granatum J. Koeing) was 6.163 mg GAE / g extract.

scholarly journals Anti-hyperglycemic and Antioxidant Potential of Water-Ethanol Extract of Musanga cecropioides Stem Bark

2016 ◽  
Vol 8 (01) ◽  
Author(s):  
Nyemb Nyunaï ◽  
Abel Joël Yaya ◽  
Thierry Gilbert Tabi ◽  
Armelle Tchamgoue ◽  
Marie Ngondé ◽  
...  
Keyword(s):  
Phenolic Content ◽  
Ethanol Extract ◽  
Stem Bark ◽  
Diabetic Rats ◽  
Total Flavonoid ◽  
Bark Extract ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Stem Bark Extract

The study investigated the effect of Musanga cecropioides (MC) water-ethanol stem bark extract on blood glucose level in both hyperglycemic loaded glucose rats and streptozotocin (STZ)-induced diabetic rats, and evaluated its antioxidant capacity. The Wistar rats were induced diabetes after fasting. Oral Glucose Tolerance Test (OGTT) was conducted on normoglycemic rats, and anti-hyperglycemic test on diabetic rats; five groups with five rats each were constituted. Group 1: negative control was treated with vehicle; Group 2, Group 3, and Group 4 were treated with increasing water-ethanol extract (200, 300 and 400 mg/kg b.w); Group 5 was the positive control, treated with glibenclamide. The antioxidant capacity of the extract was also evaluated by measuring the Ferric Reducing Antioxidant Power, Total Phenolic Content, Total Flavonoid Content, and radical scavenging activity of water-ethanol stem bark extract. In OGTT the water-ethanol extract of MC, at the dose of 300 mg/kg, significantly lowered the Area under Curve (AUC) induced by glucose. In STZ diabetic rats, the extract significantly lowered the AUC of blood glucose, at all doses. Glibenclamide was more efficient in both OGTT and anti-hyperglycemic test. The MC extract presented relevant antioxidant activity with IC50 = 6.23 mg/mL. Both the Total Phenolic Content and the Total Flavonoid Content increased in a dose-dependent manner. The correlation of DPPH % free radical scavenged and Total Flavonoid Content was positive and statistically significant. MC water-ethanol extract possesses a good antioxidant potential, and could be helpful to lower hyperglycemic state associated with diabetes.

Novel determination of the total phenolic content in crude plant extracts by the use of 1H NMR of the –OH spectral region

2011 ◽  
Vol 688 (1) ◽  
pp. 54-60 ◽  
Author(s):  
A.A. Nerantzaki ◽  
C.G. Tsiafoulis ◽  
P. Charisiadis ◽  
V.G. Kontogianni ◽  
I.P. Gerothanassis
Keyword(s):  
1H Nmr ◽  
Plant Extracts ◽  
Spectral Region ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic

Determination of optimal extraction conditions for phenolic compounds from Pistacia atlantica leaves using the response surface methodology

2016 ◽  
Vol 8 (31) ◽  
pp. 6107-6114 ◽  
Author(s):  
Ziyad Ben Ahmed ◽  
Mohamed Yousfi ◽  
Johan Viaene ◽  
Bieke Dejaegher ◽  
Kristiaan Demeyer ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Phenolic Compounds ◽  
Response Surface ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Box Behnken Design ◽  
Pistacia Atlantica

Response surface methodology in combination with a Box–Behnken design was performed to optimize the extraction conditions, resulting in a maximum total phenolic content yield from Pistacia atlantica leaves.

scholarly journals Development of Paper Based Sensor for the Determination of Total Phenolic Content in Green Tea Beverages

2016 ◽  
Vol 9 ◽  
pp. 424-430 ◽  
Author(s):  
Mochammad Amrun Hidayat ◽  
Fadilatul Jannah ◽  
Bambang Kuswandi
Keyword(s):  
Green Tea ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic

Photoacoustic Approach to Direct Determination of the Total Phenolic Content in Red Sorghum Flours

2004 ◽  
Vol 52 (8) ◽  
pp. 2133-2136 ◽  
Author(s):  
Otto Dóka ◽  
Dane D. Bicanic ◽  
Mamoudou H. Dicko ◽  
Maja A. Slingerland
Keyword(s):  
Total Phenolic Content ◽  
Phenolic Content ◽  
Direct Determination ◽  
Total Phenolic
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