نتایج جستجو برای: 6998 and 007 mg ascorbic acid g of dry algal

تعداد نتایج: 24134725  

In this study, a new reaction system for quantitative determination of ascorbic acid was introduced. The developed method is based on inhibitory effect of ascorbic acid on the Orange G-bromate system. The change in absorbance was followed spectrophotometrically at 478 nm. The dependence of sensitivity on the reaction variables including reagents concentration, temperature and time was investiga...

Background: Lactuca undulata is an annual herb belongs to Asteraceae family.  Cichoric acid is the main component of Lactuca undulata which has different property in food and pharmaceutical industries. Objective: The goal of current research was to compare phytochemical components and antioxidant activity of Lactuca undulata which was collected from different regions of Iran. Methods: For this ...

Journal: :avicenna journal of phytomedicine 0
mansureh kamali department of chemical engineering, quchan azad university, quchan, iran susan khosroyar department of chemical engineering, quchan azad university, quchan, iran hossein kamali natural products & medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran tooba ahmadzadeh sani school of pharmacy, mashhad university of medical sciences, mashhad, iran ameneh mohammadi natural products & medicinal plants research center, north khorasan university of medical sciences, bojnurd, iran

objective: dracocephalum kotschyi (lamiaceae family) has been usedin traditional medicine for stomach and liver disorders, headache and congestion. in the present study, we have investigated phytochemical properties and antioxidant activities of dichloromethane, ethyl acetate and methanol extracts of d.kotschyi. material and methods: antioxidant activities of extracts were evaluated using the i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده علوم پایه 1392

let g=(v,e) be a graph with vertex set v and edge set e.for two vertices u,v of g ,the closed interval i[u,v] ,consists of u,v and all vertices lying in some u-v geodesic in g.if s is a set of vertices of g then i[s]is the union of all sets i[u,v]for u,v ? s. if i[s]=v(g) , then s is a geodetic set for g.the geodetic number g(g) is the minimum cardinality of geodetic set.the maximum cardinalit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات 1394

abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...

A Moieni , H Naghdi Badi , M Abdoli ,

Background: Purple coneflower (Echinacea purpurea L.) is one of the most important medicinal plants. Hairy root culture of Echinace, represent a valuable alternative to field cultivation for the production of bioactive secondary metabolites. Objective: The present study investigates the effects of KNO3, CaCl2 and MgSO4 concentrations on growth and the biosynthesis of cichoric acid in Echinacea...

2010
Janja Kristl Metka Slekovec

The strawberry cultivars Arosa, Clery, Miss, Raurica, Queen Elisa, Diamante and Madeleine grown in Slovenia were harvested at the commercially maturity stage and the content of total ascorbic acid and dehydroascorbic acid (DHA) was determined. Ascorbic acid (AA) was measured by using high-performance liquid chromatography and photodiode array detector. The total AA content of cultivars ranged f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

Arab, N., Assare, R., Ebtekari, R., Rajabi Islami , H., Rastravan, M.I.,

This study was aimed to evaluate the effect of L-ascorbyl-2-polyphosphate as a dietary ascorbic acid source on blood parameters of Caspian brown trout (Salmo trutta caspius), including red blood cell (RBC) count, white blood cell (WBC) and WBC differential. A total number of 600 Caspian brown trout (9.6±0.6 g) fingerlings were randomly distributed in triplicates among five treatments each conta...

Journal: :International Journal of Secondary Metabolite 2022

The aim of this study was to investigate the antioxidant, antiradical activity Lycianthes rantonnetii (Solanacaeae) plant, determine levels element (Fe, Zn, Mn, Cu, Cr, Mo, Cd, As, Pb, Co, V, Tl, Li, Ti, Sr, Be), mineral (Mg, P) and vitamin (A, E, C). In study, metals analyses were carried out using dry ashing method with ICP-OES, A E HPLC C, total phenol, flavonoids, antioxidant capacity, DPPH...

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