相关实验视频

Updated: Sep 13, 2025

PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis
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PTR-ToF-MS Coupled with an Automated Sampling System and Tailored Data Analysis for Food Studies: Bioprocess Monitoring, Screening and Nose-space Analysis

Published on: May 11, 2017

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实施拓数据分析,用于监测真空辅助透式果脱水过程中的质量转移

Julio Emmanuel González-Pérez1,2, Shengli Jiang3, Oscar Jiménez-González1,4

  • 1Department of Chemical, Food and Environmental Engineering, Universidad de las Américas Puebla, Ex hacienda de Santa Catarina Mártir, San Andrés Cholula, Puebla, Mexico 72810.

ACS omega
|July 29, 2025
PubMed
概括

拓数据分析 (TDA) 提供了一种新的,非侵入性的方法来监测果中的葡萄汁浸. 这种基于图像的方法量化了质量转移,有助于优化食品加工和质量控制.

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Osmosis and Osmotic Pressure of Solutions02:40

Osmosis and Osmotic Pressure of Solutions

A number of natural and synthetic materials exhibit selective permeation, meaning that only molecules or ions of a certain size, shape, polarity, charge, and so forth, are capable of passing through (permeating) the material. Biological cell membranes provide elegant examples of selective permeation in nature, while dialysis tubing used to remove metabolic wastes from blood is a more simplistic technological example. Regardless of how they may be fabricated, these materials are generally...
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Osmosis

Osmosis is the movement of free water molecules through a semipermeable membrane.  The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
Water, like other substances, moves from a high concentration of...
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Xylem and Transpiration-driven Transport of Resources

The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.
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