পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| হিমায়িত-শুষ্ককরণ (লায়োফিলাইজেশন)× | সুপারক্রিটিক্যাল ফ্লুইড এক্সট্রাকশন× | |
|---|---|---|
| ক্ষেত্র | খাদ্য বিজ্ঞান | খাদ্য বিজ্ঞান |
| পরিবার | Process / pipeline | Process / pipeline |
| উদ্ভবের বছর≠ | 1890s–1930s (scientific foundations); widespread food use from 1950s onward | 1960s–1980s (industrial development; Zosel's foundational patents ~1964–1978) |
| প্রবর্তক≠ | Multiple contributors (Altmann, d'Arsonval, Bordas, Shackell — early 20th century; industrialised post-WWII) | Multiple contributors (Kurt Zosel, Gerd Brunner, and others from the 1960s–1980s) |
| ধরন≠ | Preservation and dehydration process | Physical separation and extraction technique |
| মৌলিক উৎস≠ | Ratti, C. (2001). Hot air and freeze-drying of high-value foods: a review. Journal of Food Engineering, 49(4), 311-319. DOI ↗ | Brunner, G. (2005). Supercritical fluids: technology and application to food processing. Journal of Food Engineering, 67(1–2), 21–33. DOI ↗ |
| অপর নাম | lyophilization, lyophilisation, cryodesiccation, vacuum freeze-drying | SFE, supercritical CO2 extraction, supercritical carbon dioxide extraction, dense gas extraction |
| সম্পর্কিত≠ | 1 | 0 |
| সারসংক্ষেপ≠ | Freeze-drying, also called lyophilization, is a low-temperature dehydration process in which water is first frozen solid and then removed by sublimation under reduced pressure, bypassing the liquid phase entirely. Widely used in food science, pharmaceuticals, and biotechnology, it preserves the physical structure, nutritional composition, colour, and flavour of sensitive products far better than conventional heat-based drying methods. | Supercritical Fluid Extraction (SFE) is a separation technique that uses a fluid held above its critical temperature and pressure — most commonly carbon dioxide — to selectively dissolve and remove target compounds from a solid or liquid matrix. Widely applied in food science, nutraceutical production, and the flavour and fragrance industry, SFE offers a solvent-efficient, thermally gentle route to recovering oils, antioxidants, pigments, and bioactive compounds without the toxic residues associated with conventional organic solvents. |
| ScholarGateডেটাসেট ↗ |
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