Study on Extraction Technology of the Pigment from Spinach

Abstract:

spinach contains a variety of plant pigments, high lutein content, which makes the research of spinach pigment extracting research special significance. Supercritical CO₂ fluid extraction food industry is a new extraction and isolation technique; microwave assisted extraction technology has the potential to become future food industrialization production of the leading. The UV-vis spectrophotometric analysis, parallel experimental method to determine the optimum process conditions of extracting pigment from spinach. For supercritical CO₂ extraction: ethanol (as extractant) is 250ml, extraction pressure 30MPa, extraction temperature 50°C, extraction time 1.5h. The microwave assisted extraction of ethanol as extractant, liquid ratio is 1:20, extraction time1.5h, extraction temperature of 40 °C. The comparison of two methods: microwave extraction is energy saving and high efficiency, and supercritical fluid extraction has safety and environmental protection, therefore, the two methods are worth to advocate and promote.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 3931-3937
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.3931
• Online since: May 2012
• Authors: Zhi Ling Chen, Jian Ping Chao, Bing Kun Wang, Hui Lin Cao, Song Wang, Chi Lin
• Keywords: Absorbance, Lutein, Microwave Assisted Extraction, Natural Pigment, Supercritical CO₂ Extraction

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