Title:	Swine wastewater as medium for growing duckweeds to nutrient cycling and valuable biomass conversion.
Authors:	MIGNONI, D. S. B. ZENATTI, A. P. STRADIOTO, G. C. NIVA, C. C. MATTHIENSEN, A. LUCHESSI, A. D. NUNES, E. de O.
Affiliation:	DAIANE SALETE BROCH MIGNONI, UNIVERSIDADE ESTADUAL DE CAMPINAS; ANA PAULA ZENATTI, INSTITUTO FEDERAL CATARINENSE; GRAZIELE C. STRADIOTO, UNIVERSIDADE ESTADUAL DE CAMPINAS; CINTIA CARLA NIVA, CNPSA; ALEXANDRE MATTHIENSEN, CNPSA; AUGUSTO D. LUCHESSI, UNIVERSIDADE ESTADUAL DE CAMPINAS; ESTELA DE OLIVEIRA NUNES, CNPSA.
Date Issued:	2024
Citation:	In: CONGRESSO BRASILEIRO DE BIOTECNOLOGIA INDUSTRIAL, 1., Florianópolis, 2024. Creating connections between biotechnology and industrial sustainability: anais. Florianópolis: Universidade Federal de Santa Catarina, 2024. I COBBIND.
Description:	Floating aquatic macrophytes, commonly known as “duckweeds” are the smallest monocot angiosperms and form dense populations with genetically uniform clones. The high level of nutrients, particularly nitrogen (N) and phosphorus (P), favors the development of these fast-growing plants with high biomass yield in aquatic ecosystems. In some Asian countries, they are vegetal protein source to several kinds of food for animals and humans. This study evaluated the yields (fresh and dry) and some nutritional properties from duckweeds biomass: Landoltia punctata and Wolffia brasiliensis grown (individually) for 20 days in a pilot-scale batch reactor using complex nutrient medium swine wastewater based. For acclimatization and density build-up, the biomass was maintained for 4 to 5 days in a restrict space (10% of the reactor area), followed by gradual expansion. After 20 days of cultivation, the total biomass was collected, drained and dried. The yields in fresh weight were to Landoltia of 7,000 and to Wolffia 4,300 kg.ha -1 ; crude protein, 30 and 27%; carbohydrates, 35 and 33 %, respectively. Biomass production shows to be satisfactory, kinetic studies of growth and conversion of substrate into product will improve the yield and compositional selectivity of the biomass, in order to establish good management and cultivation practices.
Thesagro:	Nutrição Suinocultura Águas Residuais
NAL Thesaurus:	Macrophytes Nutrition
Keywords:	Biotechnological process Vegetal biomass Processo biotecnológico Macrófita Biomassa vegetal
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CNPSA)