secondary antioxidant-an overview sciencedirect topics
Secondary Antioxidant. Secondary AOs become cost effective when they can lower the required amount of more expensive primary AOs. And some high-performance, phosphite-based secondary AOs have even been shown to maintain a resin’s color and melt flow properties in PP when used as the sole processing stabilizer—without any primary phenolic AO in the formulation [1-1, 3-3, 3-4, 3-12][1-1][3-3
B. Daramola, G.O. Adegoke, in Nuts and Seeds in Health and Disease Prevention, 2011. Mechanism of antioxidant action. Antioxidants can be divided into three groups by their mechanism: (1) primary antioxidants, which function essentially as free radical terminators (scavengers); (2) secondary antioxidants, which are important preventive antioxidants that function by retarding chain initiation
S. Munné-Bosch, M. Pintó-Marijuan, in Encyclopedia of Applied Plant Sciences (Second Edition), 2017. Antioxidants. When researchers aim to quantify the antioxidant capacities of any plant tissue, they should keep in mind that the most important antioxidant systems present a reduced and an oxidized form, the so-called redox pair.
The secondary, or preventive, antioxidants work indirectly on limiting lipid oxidation. Several mechanisms including the chelation of transition metals, singlet-oxygen quenching (in photooxidation), and oxygen scavenging can be exhibited by these secondary antioxidants ( Decker, 2002 ).
Secondary metabolites are miscellaneous organic molecules which are produced by the plants from the primary metabolites (sugars, proteins, amino acids, lipids, and nucleic acids) and are not utilized by the plants for its growth. 32,33 Plant secondary metabolites, such as phenolic acids, flavonoids, amines, pigments, vitamins, steroids, and
primary antioxidant 1077 cas 847488-62-4 list 2
Antioxidant - an overview | ScienceDirect Topics. Page 1/6 Material Safety Data Sheet acc. to ISO/ Printing date 11/21/2016 Version-No: 1 Reviewed on 11/19/2016 DR 1 Identification of the substance/mixture and of the company/undertaking. Leave A Message
primary crusher secondary crusher coal
Primary Crusher - an overview ScienceDirect Topics. Primary coal crusher: Used for larger coal size. The primary coal crushers may be of different types such as: (1) coal jaw, (2) coal hammer, and (3) ring granulator. Secondary coal crusher: Used when the coal coming from the supplier is large enough to be handled by a single crusher.