Biowaste-POSTER SESSION

[CEST2019_00019] Assessment of the procedure and the end product of composting food residues in combination with olive mill waste
by Daskaloudis I., Lekkas D.

Composting bio-waste, in the context of circular economy, is a financially affordable and easy to apply method. For this research, food residues from the university’s restaurant were used as initial material in combination with olive mill waste (OMW) in order to form three small composting piles which were placed outdoor. In order to evaluate the composting procedure and the final product (compost) physicochemical measurements were carried out. In particular, the oxygen and temperature levels of the piles were monitored. Furthermore, moisture, pH, organic matter, total organic carbon and total Kjeldahl nitrogen were measured throughout the composting period. In order to assess the maturity and the phytotoxicity of the composts static respiration tests (SRT) and germination tests were performed. Results showed that all of the composting factors followed the general pattern of a composting procedure except some “abnormalities” due to the OMW presence. Composts were evaluated as mature but phytotoxic.

Saturday
Poster presentation in Biowaste-POSTER SESSION
[CEST2019_00861] Biopolymer extraction assay from fungal biomass
by Arbia W., Aili D., Adour L.

The cultivation of Penicillium strain, isolated from rotten vegetables, on potatoe dextrose broth (PDB) medium enriched in arginine and mineral elements, allowed to obtain a yield of 31.7 mg/g of dry biomass and 9 mg/g of dry biomass into chitin and natural chitosan, respectively. The infrared spectroscopy analysis showed a great similarity between the infrared spectra of chitin and natural chitosan obtained and the commercial chitin and chitosan, respectively.

Saturday
Poster presentation in Biowaste-POSTER SESSION