Cultivation of Chlorella vulgaris on dairy waste using vision imaging for biomass growth monitoring

Peter, AP; Chew, KW; Koyande, AK; Yuk-Heng, S; Ting, HY; Rajendran, S; Munawaroh, HSH; Yoo, CK; Show, PL

Keywords: culture medium, biomass growth, dairy waste, Colour acquisition, Colour model

Abstract

Continuous automation of conventional industrial operations with smart technology have drawn significant attention. Firstly, the study investigates on optimizing the proportion of industrial biscuit processing waste powder, (B) substituted into BG-11 as a source of cultivation medium for the growth of C. vulgaris. Various percentages of industrial biscuit processing waste powder, (B) were substituted in the inorganic medium to analyse the algal growth and biochemical composition. The use of 40B combination was found to yield highest biomass concentration (4.11 g/L), lipid (260.44 mg/g), protein (263.93 mg/g), and carbohydrate (418.99 mg/g) content compared with all the other culture ratio combination. Secondly, the exploitation of colour acquisition was performed onto C. vulgaris growth phases, and a novel photo-to-biomass concentration estimation was conducted via image processing for three different colour model pixels. Based on linear regression analysis the red, green, blue (RGB) colour model can interpret its colour variance precisely.

Más información

Título según WOS: Cultivation of Chlorella vulgaris on dairy waste using vision imaging for biomass growth monitoring
Volumen: 341
Fecha de publicación: 2021
Idioma: English
DOI:

10.1016/j.biortech.2021.125892

Notas: ISI