Answer:
Marta S. Izydorczyk, in Handbook of Hydrocolloids (Third Edition), 2021
13.7.3.6 Arabinoxylans in cosmetics
Arabinoxylan derivatives, such as cation arabinoxylans and their hydrophobically modified products, are potentially useful ingredients in cosmetic and personal care products (Yang, Wuxi, & Cui, 2017). Water-soluble cationic arabinoxylans exhibit hair conditioning properties, and arabinoxylans with low-molecular-weight and high charge density can be absorbed on the hair surface. Cationic polymers are commonly used in hair conditioners as the electrostatic interactions between the positively charged cationic polymer and anionic hair surface lead to the absorption of the conditioner on the hair surface, thus making the hair soft and smooth (Fig. 13.18). Properties such as diverse structure, biocompatibility, nontoxicity, and low production costs make arabinoxylans promising candidates for these uses (US patent 2019).
Explanation:
Answer:
Prokaryotic cell: It is a type of cell which have no true nucleus or membrane is absent around the nucleus and mitochondria is also absent. The organisms having prokaryotic cell is known as prokaryotes. For example amoeba.
Prokaryotic cell: It is a type of cell which have true nucleus or membrane is present around nucleus and mitochondria is also present. The organisms having eukaryotic cell is called eukaryotes.
For example, plant and animals.
Answer:
here are several methods of separating mixtures. The common ones are:
1. Winnowing
The wind is used to separate wharves (chaff), small sticks, and dry leaves, from grains or seeds by blowing the chaff away.
Chaff is usually lighter than the grains.2. Sieving
a sieve is used to separate mixtures of particles of different sizes. For example stones from flour.
The larger particles remain on the sieve while the finer ones pass through.
3. Picking
Here the large particles are separated from smaller ones by observing them and using the hands to remove the unwanted ones.
For example, stones are separated from rice or beans in this way.
4. Filtering
This method is used to separate a liquid from particles that cannot dissolve in it.
For example, separating sand from water using filter paper or piece of cloth.5. Decanting
This is when a liquid is separated from large particles of solids by pouring the liquid out gently.
For example, pouring off kerosene that has mixed with tiny ball bearings.
Explanation:
Magnetic reversals C. PROVIDE STRONG EVIDENCE FOR SEAFLOOR SPREADING.
Magnetic reversal is evident when the <span>change in the Earth's magnetic </span><span>field results in the magnetic </span><span>north being aligned with the geographic south, and the magnetic </span><span>south being aligned with the geographic north. It is also called geomagnetic reversal</span><span>.</span>
Magnetic reversals can occur in less than 100 years. It led to extinction events during the pre-historic times. Because the magnetic field is rapidly weakening, magnetic reversal may cause biblical floods.
