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Application of supercritical and subcritical fluids in food processing |
Maša Knez Hrnčič*, Darija CÖr, Mojca Tancer Verboten**, Željko Knez*,*** |
*Faculty of Chemistry and Chemical Engineering, Laboratory for Separation Processes and Product Design, University of Maribor, Smetanova 17, Maribor, Slovenia, **Faculty of Law, University of Maribor, Mladinska ulica 9, Maribor, Slovenia and ***Faculty of Medicine, University of Maribor, Taborska ulica 8, Maribor, Slovenia |
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Abstract
Using high pressure as a processing tool can overcome the legal limitations for solvent residues and restrictions on the use of conventional solvents in chemical processes. Additionally, particulate products can also be achieved by means of supercritical fluid (SCF) processing. This contribution will give a limited overview of applications of subcritical fluid and SCF and will present the energy savings compared with conventional production methods. Considering these qualities, SCFs could certainly be applied as a replacement for conventional solvents in extractive and non-extractive processes, as a nontoxic, inexpensive, non-flammable, and non-polluting solvent. Many applications, such as high pressure sterilization, jet-cutting, thin film deposition for microelectronics, and the separation of value-added products from fermentation broths in the biotechnology field, have been developed on an industrial scale to produce marketable food products.
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Published: 01 June 2018
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Corresponding Authors:
Željko Knez
E-mail: zeljko.knez@um.si
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超临界和亚临界流体萃取在食品加工中的应用
利用高压作为加工手段可以克服化学加工中溶剂残留和传统化学试剂限制使用的缺陷,同时超临界萃取加工手段也可以获得颗粒状产品。本论文对超临界和亚临界流体萃取技术的应用进行综述,并同传统生产方式进行节能方面的对比。超临界和亚临界流体萃取技术具有无毒、价格低、无溶剂污染等优点,其在高压灭菌、喷射切割、微电子薄膜等技术方面的应用许多已工厂化规模,并生产出具有市场力的食品相关产品。
关键词:
分离,
分馏,
提取,
副产物,
绿色溶剂
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