Abstract: A quantification method for a total amount of microalgal lipids by near-infrared Raman spectrometry is disclosed, which includes the following steps: providing a microalgae sample and a substrate of which a surface is covered by a metal layer; applying the microalgae sample on the metal layer of the substrate; supplying a laser light in a wavelength of near-infrared light by which the microalgae sample is excited; recording Raman signals of the microalgae sample to form a Raman spectrum; and converting intensity of lipid signals in the Raman spectrum into a total amount of microalgal lipids in the microalgae sample according to a calibration curve.

Abstract: Disclosed herein is a process for enhancing anaerobic biohydrogen production, including: adding into a reactor an organic waste containing hydrogen-producing anaerobic bacteria, a first substrate, and a carrier that permits the hydrogen-producing anaerobic bacteria to adhere and grow thereon, so as to form a mixture; acclimating the mixture at a first agitation speed ranging from 5 to 60 rpm, so that the hydrogen-producing anaerobic bacteria adhere to and proliferate on the carrier, followed by the formation of granular biomasses within the acclimated mixture; and feeding a second substrate into the reactor at a second agitation speed ranging from 5 to 60 rpm, so that the content of the granular biomasses is increased while the second substrate is anaerobically fermented by the hydrogen-producing anaerobic bacteria in the granular biomasses to result in the production of hydrogen.