استفاده از فناوري هيدروليز آب زيربحراني براي توليد آمينوكلات روي از يك پسماند آلي

چكيده انگليسي :

The use of subcritical water hydrolysis technology for producing zinc amino chelate from an organic waste Mahshid Abedpour Dardashti m abedpour71@yahoo com Jan 15 2019 Department of Soil Science Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisor H Shariatmadari shariat@cc iut ac irAbstractBlood is an important by product in the meat industry that is generated during the slaughter of livestockand poultry Due to high volumes of blood produced in slaughterhouses and its great polluting capacity blood is one of the biggest problems for environment and food health worldwide The aim of thisresearch work was to apply the sub critical water hydrolysis for recycling method and convert bloodfrom slaughterhouses into amino acids and synthesis of zinc Zn amino chelate for plant nutrition Inthe first part of the experiment the effect of hydrolysis time and substrate to water ratio on the aminoacid yield was investigated For this purpose under constant pressure 5 bar and temperature 150 C the effects of different reaction times 0 10 15 20 30 40 50 60 90 and 120 min and the ratio ofsubstrate to water 2 1 1 1 and 1 2 v v were investigated in a batch reactor Results showed that thereaction time had a substantial effect on the hydrolysis yield and by increasing the reaction time significant increase in the amino acids extracted from blood was observed Based on the results underthe tested pressure 5 bar and temperature 150 C the highest amino acid yield by hydrolysis of bloodwas obtained at the reaction times of 90 and 120 min with the substrate to water ratios of 1 2 and 2 1 In the second part of the experiment Zn amino chelate was synthesized using amino acids produced bysub critical water hydrolysis of blood and then the efficiency of the synthesized chelate on growth andZn uptake of corn Zea mays L was compared with Zn sulphate A nutrition solution cultureexperiment was set up as completely randomized design in triplicates Zinc was used as foliar spray inthe form of complexed with blood extracted amino acids and Zn sulphate A control free of Zn wasalso considered After harvesting plant height root and shoot dry masses and Zn nitrogen N and iron Fe concentrations were measured In addition concentration of chlorophyll a and b and carotenoidsin the plant leaves were measured Application of Zn regardless of the source used significantlyincreased root and shoot dry mass of corn in comparison with the control The largest plant height androot and shoot dry mass was observed at the synthesized Zn amino chelate treatment Leaf Feconcentration at all treatments was within the sufficiency range of this nutrient element for corn although the plant receiving Zn amino chelate had higher concentration of Fe as compared with thosereceiving Zn sulphate and control plants A significant increase in the leaf chlorophyll concentration ofplants supplied with Zn amino chelate and Zn sulphate was observed in comparison with the control Overall our results showed that Zn complexed with blood extracted amino acids can be considered asa proper source of Zn for plants although further research particularly under field conditions is needed Keywords Sub critical water hydrolysis blood amino chelate protein ferrous ion chelating ability 91

عابدپور دردشتي، مهشيد

استفاده از فناوري هيدروليز آب زيربحراني براي توليد آمينوكلات روي از يك پسماند آلي

هيدروليز آب زير بحراني , خون , آمينوكلات , پروتئين , توانايي كلات شدن يون آهن