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An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.
An electron-withdrawing group (EWG) is a group or atom that has the ability to draw electron density toward itself and away from other adjacent atoms. [1] This electron density transfer is often achieved by resonance or inductive effects.
The Major Dickinson's dark roast coffee — from leading coffee industry chain Peet’s — is one of the best blends from Costco. Despite the roaster’s status as a chain, Peet’s is a far cry ...
Delocalizing the radical ion stabilizes the transition state structure. As a result, the energy of activation decreases, enhancing the rate of the overall reaction. According to the captodative effect, the rate of a reaction is the greatest when both the EDG and EWG are able to delocalize the radical ion in the transition state structure. [7]
The higher price tag of organic coffee can be attributed to many varying factors, one of which is ethical concern. A study done in South Korea used the Theory of Planned Behaviour (TPB) to assess what motives were behind the choice of organic coffee and explored the concern for ethics here. [12] The findings of this study showed that consumers ...
Sustainable coffee is a coffee that is grown and marketed for its sustainability. This includes coffee certified as organic , fair trade , and Rainforest Alliance . Coffee has a number of classifications used to determine the participation of growers (or the supply chain) in various combinations of social, environmental, and economic standards.
Grain coffee and other substitutes can be made by roasting or decocting various organic substances.. Some ingredients used include almond, acorn, asparagus, malted barley, beechnut, beetroot, carrot, chicory root, corn, soybeans, cottonseed, dandelion root (see dandelion coffee), fig, roasted garbanzo beans, [5] lupinus, boiled-down molasses, okra seed, pea, persimmon seed, potato peel, [6 ...
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