Current Protocols in Food Analytical Chemistry; Pages: ; First Published: 1 February No abstract is available for this article. Full text · PDF · Request. Current Protocols in Food Analytical Chemistry branding banner of Low‐ Resolution NMR for Simultaneous Moisture and Oil Determination in Food ( Oilseeds). Traditional Indirect Methods for Estimation of Water Content: Measurement of ° Brix · David S. Reid. First Published February Abstract · Full text · PDF.
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Request PDF on ResearchGate | On Nov 1, , M.S. Rahman and others published Current Protocols In Food Analytical Chemistry. Request PDF on ResearchGate | On Aug 1, , Neal E. Craft and others published Current Protocols in Food Analytical Chemistry. Request PDF on ResearchGate | On Feb 1, , Deborah Roberts and others published Current Protocols in Food Analytical Chemistry.
We evaluated 35 native plants containing anthocyanin pigments as potential sensitizers for DSSCs. Melastoma malabathricum fruit pulp , Hibiscus rosa-sinensis flower , and Codiaeum variegatum leaves showed the highest absorption peaks. Hence, these were used to determine anthocyanin content and stability based on the impacts of storage temperature.
Melastoma malabathricum fruit pulp exhibited the highest anthocyanin content 8. The highest half-life periods for anthocyanin in M. The photovoltaic efficiency of M. Hence, M. It is based on semiconductor electrode-adsorbed dye, a counter electrode, and an electrolyte containing iodide and triiodide ions [ 2 ].
This device is capable of generating energy by converting the light absorbed into electrical energy. Numerous metal complexes and organic dyes have been used and utilized as sensitizers [ 3 ]. Although such results provide better efficiency and high durability, the advantages are often offset by their high cost of production, complicated synthetic routes, environmental impact, and the tendency to undergo degradation in presence of water [ 6 ].
Seven tubes areused for six time points plus a reagent blank. Prepare a reagent blank by adding 0. Preincubate 15 min with magnetic stirring in a water bath set at37C.
Add a sufficient amount of enzyme limit to 0. Remove duplicate 0. Immediately vortex 2 min to stop the reaction and form the coloredfatty acid cupric soaps. Centrifuge 5 min at g, room temperature, to obtainthe clear benzene upper phase.
Samples are stable at this point for up to 3 days Lowry and Tinsley, and can be setaside for later analysis.
Zero the spectrophotometer at nm with the benzene layer obtained from thereagent blank. Measure the A for the benzene layer of each sample using glasscuvettes.
Analyze data Construct a reaction progress curve by plotting the concentration of oleic acid versusreaction time. Determine specific activity sp. All calculations in thisprotocol are similar to those used in Basic Protocol 1. However, differences occur in theuse of the standard curve, magnitude of volumes and quantities of subsamples, the reactionmixture, and level of enzyme added. Activity of lipase can becalculated by comparing sample A values to those of a standard curve prepared withp-nitrophenol.
Meeresunters, ; Effect of nitrogen and extraction method on algae lipid yield. International Journal of Agricultural and Biological Engineering, ; 2 1 : Review of the biological and engineering aspects of algae to fuels approach. International Journal of Agricultural and Biological Engineering, ; 2 4 : Supercritical extraction of food pigments with antioxidant activity.
Lichtenthaler H K, Buschmann C. Extraction of Photosynthetic Tissues: Chlorophylls and Carotenoids. Porra J P.
The chequered history of the development and use of simultaneous equations for the accurate determination of chlorophylls a and b. Photosynthesis Research, ; Chlorophyll extraction from microalgae: A review on the process engineering aspects.
Under the influence of alcohol: The effect of ethanol and methanol on lipid bilayers. Biophysical Journal, ; Optimization of the method for Chlorophyll extraction in aquatic plants.
Journal of Freshwater Ecology, ; 25 4 : Leaf anatomy affects the extraction of photosynthetic pigments by DMSO. Talanta, ; Jankiewicz L S.