CAS: N/A
Molecular Formula: C18H24ClNO13
Molecular Weight: 497.8
Purity: > 95%
High purity 2-Chloro-4-nitrophenyl-α-mannobioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a potential colourimetric substrate for research into β-1,4-mannan degrading enzymes.
Molecular Formula: C24H34ClNO18
Molecular Weight: 660.0
Purity: 98%
High purity 2-Chloro-4-nitrophenyl-α-mannotrioside for use in research, biochemical enzyme assays and in vitro diagnostic analysis. This is a potential colourimetric substrate for research into β-1,4-mannan degrading enzymes.
分析物意义：小肠不能消化的碳水化合物
Megazyme检测试剂盒优点：试剂稳定。成本低。AOAC方法985.29和991.43；AACC方法32-07和32-21
The Total Dietary Fiber test kit is suitable is suitable for the measurement and analysis of Total Dietary Fiber.
For the determination of Total Dietary Fiber in cereal products,
foodstuffs, feeds and other materials
Principle:
(α-amylase + amyloglucosidase)
(1) Starch + H2O → D-glucose
(protease)
(2) Protein + H2O → peptides
(3) Dietary fiber determined gravimetrically following alcohol
precipitation
(4) Ash and residual protein determined on DF residues
and subtracted
Kit size: 100 / 200 assays
Method: Hydrolysis / removal of non-dietary
fibre components
Total assay time: ~ 100 min
Detection limit: 0.5-100% of sample weight
Application examples:
Food ingredients, food products and other materials
Method recognition:
AOAC (Methods 985.29, 991.42, 991.43 and 993.19), AACC
(Methods 32-05.01, 32-06.01, 32-07.01 and 32-21.01) and
CODEX (Type I Method)
Total Dietary Fiber Assay Kit, for the measurement and analysis of total, soluble and insoluble dietary fiber according to AOAC and AACC approved methods. See General Referee Reports: Journal of AOAC INTERNATIONAL, Vol. 81, No. 1, 1998.
Fiber is a mixture of complex organic substances, including hydrophilic compounds, such as soluble and insoluble polysaccharides and non-digestable oligosaccharides, as well as a range of non-swellable, more or less hydrophobic, compounds such as cutins, suberins and lignins. The procedures for the determination and analysis of total dietary fiber as outlined in our booklet are based on the methods of Lee et al.1 and Prosky et al.2,3 (AOAC 991.43, AOAC 985.29, AACC 32-07.01 and AACC 32-05.01). However, the enzymes in the Megazyme Total Dietary Fiber Kit can also be used in other dietary fiber analytical methods such as AACC Method 32-21.01 and AACC Method 32-06.01.
1. Association of Official Analytical Chemists. (1985). Official Methods of Analysis, 14th ed., 1st suppl. Secs. 43, A14-43, A20, p.399.
2. Association of Official Analytical Chemists. (1986). Changes in methods. J. Assoc. Off. Anal. Chem., 69, 370.
3. Association of Official Analytical Chemists. (1987). Changes in methods. J. Assoc. Off. Anal. Chem., 70, 393.
Two separate methods are described in the associated data booklet:
METHOD 1:
DETERMINATION OF TOTAL, SOLUBLE AND INSOLUBLE DIETARY FIBER
Based on AOAC Method 991.43 “Total, Soluble, and Insoluble Dietary Fiber in Foods” (First Action 1991) and AACC Method 32-07.01 “Determination of Soluble, Insoluble, and Total Dietary Fiber in Foods and Food Products” (Final Approval 10-16-91).
METHOD 2:
DETERMINATION OF TOTAL DIETARY FIBER
Based on AACC method 32-05.01 and AOAC Method 985.29.
Advantages
分析物意义：常见食品组分，或作为甜味剂，或用于改善口感
Megazyme检测试剂盒优点：新型的药片模式，性质更稳定，反应快
The Glycerol test kit is a simple, reliable, rapid and accurate method for the measurement and analysis of Glycerol in beverages, foodstuffs and other materials.
Suitable for manual and microplate formats.
UV-method for the determination of Glycerol in foodstuffs,
beverages and other materials
Principle:
(glycerokinase)
(1) Glycerol + ATP → L-glycerol-3-phosphate + ADP
(pyruvate kinase)
(2) ADP + PEP → ATP + pyruvate
(L-lactate dehydrogenase)
(3) Pyruvate + NADH + H+ → L-lactic acid + NAD+
Kit size: 70 assays (manual) / 700 (microplate)
Method: Spectrophotometric at 340 nm
Reaction time: ~ 5 min
Detection limit: 0.34 mg/L
Application examples:
Wine (and grape juice), beer, spirits, vinegar, marzipan, fruit juices,
soft drinks, toothpaste, honey, tobacco, paper (and cardboard),
cosmetics, pharmaceuticals, soap and other materials (e.g. biological
cultures, samples, etc.)
Method recognition:
Methods based on this principle have been accepted by OIV and
MEBAK
Advantages