02863ntm a2200349 i 4500 MY-KuUP 20260610172655.0 t||||fr|||| 000 0 ta 260610t20242024my a|||fr|||| 000 0 eng d THE0010582 (Local) Hardback UMPSA eng UMPSA rda FTKKP .A37 2024 r Bc. Adriana Masturina Binti Abdullah, author. Optimization of biofertilizer production with high phosphorus (p) content using mushroom waste / Adriana Masturina Binti Abdullah Kuantan, Pahang : UMPSA, 2024 © 2024 ix, 43 pages : illustrations ; rdacontent text rdamedia unmediated rdacarrier volume rda text file PDF Faculty of Chemical and Process Engineering Technology Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2024 Include bibliographical reference Mushroom cultivation can be considered one of the best presentations of sustainable and circular economy activities, particularly from the cultivation of oyster mushroom (Pleurotus sp.). To help mushroom industry’s waste management practices, an alternative method was developed. The main goal of this work was to pinpoint the critical parameters affecting the growth of high phosphorus (P) content in biofertilizer using mushroom waste. The parameters studied were drying temperature (60°C, 70°C, 80°C, 90°C and 100°C) and mushroom waste (MW) content (50%, 60%, 70%, 80% and 90%). The reaction time for Bokashi fermentation was 10 days, where the size of mushroom waste was cut to 1 cm and agitation was applied to the sample twice a day until the last day of fermentation process. The factors that have biggest effects on Phosphorus (P) were examined using an optimization approach by Central Composite Design (CCD) using Design Expert Software Version 7. An HACH Spectrophotometer was used to measure the amounts of Phosphorus (P) in concentration unit (mg/L). The results showed that both drying temperature and mushroom waste content are the most important factors in determining high Phosphorus (P) content. Based on the results obtained from Design Expert Software V7, the optimum conditions in producing high phosphorus biofertilizer are at 70°C drying temperature and 80% mushroom waste content with highest recorded P value at 7725.33 mg/L. Keywords: Biofertilizer; Phosphorus; Optimization analysis; Bokashi fermentation Faculty of Chemical and Process Engineering Technology Dissertations Universities and colleges Dissertations Theses Dissertations https://umpir.ump.edu.my/id/eprint/46918 lcc THESIS 0 0 lcc 0 0 10000 10000 2026-06-10 0 FTKKP .A37 2024 r Bc. T000004122 2026-06-10 17:27:24 2026-06-10 THESIS 104970 104976