L. lactis and S. cerevisiae have two alternative pathways, an efficient, high-yield pathway glycolysis followed by mixed acid fermentation or oxidative phosphorylation and an inefficient, low-yield pathway glycolysis followed by lactic acid or ethanol production.
Yet surprisingly, many organisms switch between a high-yield pathway, e.g., aerobic respiration that yields more than thirty moles of ATP per mole glucose, and a highly inefficient, low-yield fermentation pathway that yields only two or three moles ATP per mole of glucose.
This large difference between PMC and CTAB among low-yielding samples is likely because the isopropanol precipitation employed in CTAB is highly inefficient for low amounts of DNA.
It was energy inefficient and low on any priority list for new capacity.
Due to these challenges, conventional drive circuits become too bulky or inefficient in low mass applications.
A two-dimensional (2-D) approach, where the length is assumed to be infinite, is inefficient at low frequencies.
However, the energy required to evaporate water from the protein solution in the final processing step would make the overall process inefficient at low meal to solvent ratios.
Additionally, as the fuel supplied to the anode, methanol shows the limitations of inefficient oxidation, low open-circuit potential, and crossover from the anode to the cathode [5].
However chemical methods are complicated, outdated, costly, inefficient, have low productivity and produce hazardous toxic wastes raising environmental safety and human health concerns.
These bioactive compounds have been prepared using solvent-based extraction from marine bio-resources or chemical synthesis, which are costly, inefficient with low yields, and environmentally unfriendly.
