scholarly journals Analysis of Chemical Constituents Changing in Physical Process and Nutritional Components of Malus halliana Koehne Tea

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Zhenhua Yin ◽  
Yong Zhang ◽  
Juanjuan Zhang ◽  
Wenyi Kang
Keyword(s):  
Physical Process ◽  
Chemical Constituents ◽  
Soxhlet Extraction ◽  
Hplc Method ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Regression Equations ◽  
Direct Titration ◽  
Tea Production

This study aimed to establish a HPLC method for simultaneous determination of the changing of quercitrin, 3-hydroxyphloridzin, and phloridzin in physical process of M. halliana tea. Meanwhile, the nutritional compositions were determined, using anthrone-sulfuric acid colorimetry and direct titration determination of total sugar and reducing sugar, respectively, in order to provide theoretical basis for quality control and tea production. The results showed that the regression equations for quercitrin, 3-hydroxyphloridzin, and phloridzin were linear in the range of 0.0972–12.15 μg (r=0.999 8), 0.0932~11.65 μg (r=0.999 1), and 0.9~112.5 μg (r=0.999 6), respectively. The average recoveries ranged from 98.19% to 99.35%. The contents of crude protein and the crude fat were measured by spectrophotometric detection and soxhlet extraction detection, respectively. The contents of total sugar, reducing sugar, the fat, and protein were 6.8 g/100 g, 8.5 mg/100 g, 2.399 g/100 g, and 4.362 g/100 g, respectively, in M. halliana tea.

scholarly journals Determination of Sugar and Mineral Contents in some Omani Fruits

2001 ◽  
Vol 6 (1) ◽  
pp. 39 ◽  
Author(s):  
Salma M Z.Al-Kindy ◽  
Abdulrahman O Abdulnour ◽  
Maryam M. Al-Rasbi
Keyword(s):  
Reducing Sugar ◽  
Total Sugar ◽  
Soil Composition ◽  
Mineral Contents ◽  
Range Of Values

Omani fruits were analyzed for their reducing sugar, total sugar contents and some minerals. Among the minerals studied were Ca, Mg, Na, K and P. The amounts of total sugar and reducing sugar were within the range of values reported in the literature for the analysis of fruits conducted elsewhere. The amounts of the minerals differ from the reported literature values. This may be attributed to soil composition, climate and type of cultivar.

Determination of Compounds inside Inoculated Aquilaria malaccensis Leaves by Soxhlet Extraction

2015 ◽  
Vol 1113 ◽  
pp. 267-272 ◽  
Author(s):  
Ku Halim Ku Hamid ◽  
Nur Suhada Mustafar ◽  
Pazilah Mohd Yusof ◽  
Siti Sofia Mohammad Shawal ◽  
Mohibah Musa ◽  
...  
Keyword(s):  
Chemical Constituents ◽  
Soxhlet Extraction ◽  
Chemical Compounds ◽  
Specific Detail ◽  
The Earth ◽  
Aquilaria Malaccensis ◽  
The Family ◽  
The World ◽  
Different Types

Aquilaria is a special tree that has been awarded to the earth. Aquilaria spp. which belongs to the family Thymelaeceae is one of the most precious trees is the world. Agarwood or gaharu is the name of the resin produced by Aquilaria spp. Historically, agarwood has widely been used as medicine. It was also being used for perfumes, incense and religious purposes in Muslim, Buddhist, Hindu, Christian, and Jewish societies. In order to discover the new uses of the agarwood, knowledge of the chemical constituents inside the plant need to be known. Aquilaria spp tree can be divided into two parts which is bark and leaves. Recently, several studies have been conducted to examine the chemical composition found in Aquilaria spp tree. However, there is still no specific detail documentation on the chemical compounds present in Aquilaria leaves. In this study, Soxhlet extraction method has been used to withdraw the compounds from the leaves. From the results obtained, it shows that extraction of compounds by using methanol was more effective. This was due to the higher polarity inside the methanol. Other than solvents, the samples preparation also gave an effect towards the final results. There were two different types of samples that have been used for this study which are fresh and dried A. malaccensis leaves. The obtaining results showed that more compounds have been extracted from the dried sample. It can be conclude that moisture content in the sample also plays a role in identification of compounds inside the A. malccensis leaves

scholarly journals Quantitative Determination of Chemical Constituents from Seeds of Nigella sativa L. Using HPLC-UV and Identification by LC-ESI-TOF

2010 ◽  
Vol 93 (6) ◽  
pp. 1778-1787 ◽  
Author(s):  
Bharathi Avula ◽  
Yan-Hong Wang ◽  
Zulfiqar Ali ◽  
Ikhlas A Khan
Keyword(s):  
Nigella Sativa ◽  
Chemical Constituents ◽  
Hplc Method ◽  
Array Detector ◽  
Diode Array ◽  
Gradient System ◽  
Diode Array Detector ◽  
Column Material ◽  
Positive Ion

Abstract An HPLC method was developed for the simultaneous determination of nine compounds of Nigella sativa L. The separation was achieved within 23 min by using C18 column material, a wateracetonitrile mobile phase, both containing 0.1 acetic acid gradient system and a temperature of 35C. The method was validated for linearity, repeatability, LOD, and LOQ. The LOD and LOQ of nine compounds were in the range of 0.0910 and 0.325 g/mL, respectively. The wavelength used for quantification with the diode array detector was 205 and 260 nm. LC/MS coupled with electrospray ionization interface method is described for the identification of compounds in N. sativa L. samples. This method involved the use of [MH]<sup/> and [MNa]<sup/> ions in the positive ion mode with extracted ion chromatogram.

TECHNOLOGICAL ASPECTS OF DEVELOPMENT CONFECTIONERY PRODUCTS’ WITH POLYOLS

2021 ◽  
Vol 14 (3(53)) ◽  
pp. 19-31
Author(s):  
Alena Mikhailovna Marhunova ◽  
Tatsiana Viacheslavovna Shugaeva ◽  
Ksеnia Nikolaevna Gershonchik
Keyword(s):  
Dry Matter ◽  
Complex Analysis ◽  
Matter Content ◽  
Total Sugar ◽  
Dry Matter Content ◽  
Regression Equations ◽  
Added Sugar ◽  
Physiological Properties ◽  
Confectionery Products

The article substantiates the relevance of the development of confectionery products with a reduced content of easily digestible carbohydrates and content of calories’, including those suitable for diabetic nutrition. A comparative analysis of the technological and physiological properties of sweeteners (polyols) was carried out and showed the prospects of using sorbitol, xylitol, maltitol and maltitol syrup for the manufacture of musli-bars without added sugar, including those suitable for diabetic nutrition. The processes of heat treatment of syrups with sweeteners are studied, regression equations are selected that allow determining the dry matter content in the syrup at a certain temperature or setting the temperature to which it is necessary to boil the syrup to achieve the required dry matter content. The influence of sweeteners on the dynamic viscosity of syrups and the strength of bars is studied. The determination of the mass fraction of total sugar (in terms as sucrose) was carried out, according to the results of which the developed products were classified as specialized products of diabetic nutrition. The complex analysis allowed to determine the optimal sweetener and, based on the results obtained, developed recipes for musli-bars without added sugar: «Cereals with raspberries», «Cereals with hazelnuts», «Cereals with blueberries».

THE EFFECT OF MALEIC HYDRAZIDE ON CERTAIN CHEMICAL CONSTITUENTS OF FLUE-CURED TOBACCO

1961 ◽  
Vol 41 (1) ◽  
pp. 170-175 ◽  
Author(s):  
E. C. Birch ◽  
L. S. Vickery
Keyword(s):  
Total Alkaloid ◽  
Maleic Hydrazide ◽  
Chemical Constituents ◽  
Sugar Content ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Chlorine Content ◽  
Calcium Magnesium ◽  
Treated Plant ◽  
Total Alkaloid Content

Maleic hydrazide applied to flue-cured tobacco at topping time at five different rates, ranging from 0.75 to 3.75 pounds of the actual chemical per acre, increased the total sugar and reducing sugar content throughout the plant. The total alkaloid content in the upper part of the plant was decreased more by low rates than by high rates of the applied chemical. The total ash, calcium, magnesium, phosphorus and chlorine content was reduced in the upper part of the treated plant, whereas the potassium content was not affected.

scholarly journals A new analytical method for determination of ledipasvir and sofosbuvir in pharmaceutical formulations by HPLC method

2019 ◽  
Vol 1 (3) ◽  
pp. 59-67
Author(s):  
K. Swathi ◽  
P. Venkateswara Rao ◽  
N. Srinivasa Rao
Keyword(s):  
Mobile Phase ◽  
Dosage Form ◽  
Pharmaceutical Formulations ◽  
Hplc Method ◽  
Simultaneous Estimation ◽  
Regression Equations ◽  
Precise Method ◽  
Tablet Dosage ◽  
Quality Control Test

A simple, Accurate, precise method was developed for the simultaneous estimation of the Sofosbuvir and Ledipasvir in Tablet dosage form. Chromatogram was run through Std Discovery C8 150 x 4.6 mm, 5m. Mobile phase containing Buffer 0.1% OPA: Acetonitrile taken in the ratio 60:40 was pumped through column at a flow rate of 1 ml/min. Buffer used in this method was 0.1% OPA buffer. Temperature was maintained at 30°C. Optimized wavelength selected was 260 nm. Retention time of Sofosbuvir and Ledipasvir were found to be 2.367 min and 3.436 min. %RSD of the Sofosbuvir and Ledipasvir were and found to be 0.6 and 0.5 respectively. %Recovery was obtained as 99.61% and 99.80% for Sofosbuvir and Ledipasvir respectively. LOD, LOQ values obtained from regression equations of Sofosbuvir and Ledipasvir were 0.67, 2.02 and 0.70, 2.12 respectively. Regression equation of Sofosbuvir is y = 4266.x + 7700, and y = 4861.x + 2656.of Ledipasvir. Retention times were decreased and run time was decreased, so the method developed was simple and economical that can be adopted in regular Quality control test in Industries.

scholarly journals Studies on physico-chemical constituents in different cultivars of citrus fruits under Lucknow condition, India

2016 ◽  
Vol 8 (2) ◽  
pp. 521-524
Author(s):  
Arun Patel ◽  
Balveer Singh ◽  
R. B. Ram ◽  
N. Thirupathi
Keyword(s):  
Ascorbic Acid ◽  
Sweet Orange ◽  
Chemical Constituents ◽  
Reducing Sugar ◽  
Total Sugar ◽  
Total Soluble Solid ◽  
Alcoholic Beverages ◽  
Citrus Fruits ◽  
Physico Chemical ◽  
Soluble Solid

The physico-chemical studies were conducted on the citrus fruits of sweet orange cv. Mosambi Local-1, 2, 3, 4 and 5 and Sweet Mandarin cv. Chinese Orange, Kinnow, Nagpur Mandarin, Local Mandarin-1 and Local Mandarin- 2. The Sweet Orange cultivar was highest size in Mosambi Local-3 with maximum fruit volume 204 ml and flesh weight 139.66 g followed by Mosambi Local-4. The juice recovery percent was maximum in Mosambi Local-3 28.63 and the highest specific gravity was found in Mosambi Local-1 (0.99) followed by Mosambi Local-2 (0.94). The different cultivars of Sweet Orange were recorded varies from the total soluble solid 7.60 to 12.66 percent, reducing sugar 4.13 to 7.08 per cent, total sugar 5.90 to 10.12 per cent, tritrable acidity 0.52 to 0.83 per cent, ascorbic acid 46 to 74.80 mg/100g and pH 3.92 to 4.98. The juice percent was determined in Kinnow 53.20 g after that Nagpur santra 51.30 g. The chemical attributes of Sweet Mandarin were found as total soluble solid varied from 8.96 to 12.20 per cent, reducing sugar 3.22 to 6.60 per cent, total sugar 5.73 to 10.04 per cent, titrable acidity 0.84 to 2.24 per cent, ascorbic acid 25.96 to 36.13mg/100 g and pH 3.84 to 4.60. However, the Sweet Orange cultivars Mosambi Local-3 and Mosambi Local-4 and Sweet Mandarin cv. Local Mandarin-1 were suitable for export, making of non alcoholic beverages, easy for bottling and frozen products grown under Lucknow conditions.

Sem and X-Ray Analysis of Renal and Biliary Calculi

1976 ◽  
Vol 34 ◽  
pp. 306-307
Author(s):  
R. J. Narconis ◽  
G. L. Johnson
Keyword(s):  
Chemical Constituents ◽  
Natural State ◽  
X Ray Diffraction ◽  
Chemical Methods ◽  
X Ray ◽  
Additional Dimension ◽  
Biliary Calculi ◽  
Calculus Formation ◽  
Scanning Electron

Analysis of the constituents of renal and biliary calculi may be of help in the management of patients with calculous disease. Several methods of analysis are available for identifying these constituents. Most common are chemical methods, optical crystallography, x-ray diffraction, and infrared spectroscopy. The application of a SEM with x-ray analysis capabilities should be considered as an additional alternative.A scanning electron microscope equipped with an x-ray “mapping” attachment offers an additional dimension in its ability to locate elemental constituents geographically, and thus, provide a clue in determination of possible metabolic etiology in calculus formation. The ability of this method to give an undisturbed view of adjacent layers of elements in their natural state is of advantage in determining the sequence of formation of subsequent layers of chemical constituents.

RP-HPLC method development for simultaneous determination of the drugs Ramipril and Amlodipine

2012 ◽  
Vol 2 (2) ◽  
pp. 364-367 ◽  
Author(s):  
Saida Naik Dheeravath ◽  
◽  
Kasani Ramadevi ◽  
Zilla Saraswathi ◽  
Dheeravath Maniklal ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Method Development ◽  
Hplc Method ◽  
Rp Hplc ◽  
Hplc Method Development
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