olive oil wax estersThe major objective of this study was to determine the chemical structure of long-chain esters present in lower-grade olive oil. The classes of esters composing the hexanediethyl ether (99:1) extract of the wax fraction from a pomace olive oil were: (i) esters of ...
A series of complex reactions occurs during the frying process, causing irreversible changes in the structure of oils and fats. These changes are mainly due to: (i) the moisture, which causes hydrolytic reactions of the triacylglycerol molecules (TG); (ii) oxygen from the ...
620 Skeletal vibration of the ring C-H stretch 2800–3000 Polarity of protein microenvironment Cα-H and CH deformation 1341, 1447 Cα-C stretch 939 Conformation sensitive Amide I, CO stretch and NH wag 1655, 1670, 1665 Secondary structure; α-helix (1655), β-sheet (1670), disordered ...
However, the high surface acidity and microporous structure of HZSM-5 lead to carbon formation. Mentzel et al. [13] introduced the concept of (H/C)eff to determine the cracking ability of hydrocarbons in bio-oil. The (H/C)eff ratio (1) is calculated for each chemical in the bio-oil ...
The structure of saturated and unsaturated chemical bonds looks like the diagram below. Oleic Acid is a monounsaturated fatty acid. The name derives from the Latin word oleum, which means oil. Oleic aicd is the most common fatty acid in nature. ...
Structure optimization of graphene aerogel-based composites and applications in batteries and supercapacitors Liyun Cao, Caiwei Wang, Yixuan Huang Article 140094 Article preview Environmental Chemical Engineering select article Hydrogen-bond based charge bridge in a heterojunction system for the synergistic degr...
The rough sets was introduced as the methods of identifying the structure of fuzzy system.First,the discretization of continu- ous attributes was made by the RSE-Chi2 methods,the redundancy of attributes and its value was eliminated by rough sets data analy- sis,and we got a collective rules...
Raw materials with low pH as prickly pear husks or pineapple sotol can be used in food manufacture as jams, juices or yogurt [36].Functional properties of the extract plant fiber depend on particle size, extraction conditions, structure of plant polysaccharides and vegetal source. The functional...
An augmented wood-penetrating structure: Cicada ovipositors enhanced with metals and other inorganic elements 10.1038/s41598-019-56203-6 Google Scholar Lozano et al., 2017 M. Lozano, P. Rodríguez-Ulibarri, J.C. Echeverría, M. Beruete, M. Sorolla, M.J. Beriain ...
Figure 1. Chemical structure of gallic acid (a) and its derivatives: gallic acid methyl ester (b), (-)-epigallocatechin gallate (c), and hydrolysable tannin (d). Currently, in addition to its strong anti-oxidant activity, gallic acid (GA) is also attributed with anti-cancer, anti-HIV,...