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Molisch test (using α-napthol) indicating a positive result (see purple ring). Molisch's test is a sensitive chemical test, named after Austrian botanist Hans Molisch, for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid or hydrochloric acid to produce an aldehyde, which condenses with two molecules of a phenol (usually α-naphthol, though other ...
Benedict's reagent is a deep-blue aqueous solution. Each litre contains: [4] 17.3 g copper sulfate; 173 g sodium citrate; 100 g anhydrous sodium carbonate or, equivalently, 270 g sodium carbonate decahydrate
For example, prior to the development of the more precise methods of NMR spectroscopy and mass spectrometry, the Zeisel test was widely used to determine the number of methoxy (-OCH 3) and ethoxy (-OCH 2 CH 3) groups in carbohydrate and organophosphorus insecticides. [5]
Opt for nuts to balance out other high-carb ingredients, or better yet, instead of empty high-calorie snacks such as potato and corn chips. panco971/istockphoto Flax Seeds
As foods vary by brands and stores, the figures should only be considered estimates, with more exact figures often included on product labels. For precise details about vitamins and mineral contents, the USDA source can be used. [1] To use the tables, click on "show" or "hide" at the far right for each food category.
Other foods free of carbohydrate include small quantities of certain condiments, unsweetened coffee and tea, and sugar free sodas. Carbohydrate content of foods is listed on the Nutrition Facts panel as "total carbohydrate". Some food labels will list specific types of carbohydrate, such as "fiber, sugar, or other carbohydrate".
Dextrin [1] – an incompletely hydrolyzed starch made from a variety of grains or other starchy foods. Dextrose [1] – same as glucose, dextrose is an alternative name of glucose; Disaccharide – also known as double sugar, it is made when two monosaccharides (aka simple sugars) are joined together. Examples include sucrose, lactose, and ...
This is a list of statistical procedures which can be used for the analysis of categorical data, also known as data on the nominal scale and as categorical variables. General tests [ edit ]