Pretreatmen technology of pectin extraction from lemon peel
Lemon peel and residue were used as raw materials for extracting pectin from lemon peel slag.A four-factor,three-level experiment was used to optimize pectin extraction process.The optimum condition was determined as follows:lemon peel particle size 1 mm,enzyme deactivation time 1 min,first level drying temperature 80 ℃ and second level drying temperature 50 ℃.Under this optimal condition,the pectin content,dry energy consumption and drying time was 12.24％,0.34 kW·h and 100 min,respectively.The pretreatmen technology of pectin extraction from lemon peel had a high theoretical value.It not only improved the comprehensive utilization of waste materials,increased the added value and economic benefits,reduced production costs and reduced environmental pollution,but also had a positive economic and social significance.
lemonorthogonal testdry energy consumptiondrying timepectin content
NETL
NSTL
万方数据
维普
