the effect of grape pomace (vitis vinifera) and in oak leaf (quercus libani) tannins by three runs of in vitro gas production on the organic matter digestibility (omd) and in situ dry matter (dm) and crude protein (cp) disappearance were studied in four sheeps. polyethylene glycol (peg) was used to deactivate the tannins. in vitro gas production was recorded at 2, 4, 6, 8, 12, 48, 72, 96 and 12...

The continuous tunability of iron oxide nanoparticle dimensions is demonstrated using the pH controlled loading of ferric nitrate from aqueous solution into polystyrene-block-polyacrylic acid reverse micelles deposited on a silicon substrate. Quasi-hexagonally ordered two-dimensional arrays of iron oxide nanoparticles with a systematic tunability of particle heights in the sub-10 nm regime and ...

The influence of solution pH (in the range 3-9) on the adsorption of polyacrylic acid (PAA) on the mixed silica-alumina surface (SA-3: SiO2 97 %-Al2O3 3 % and SA-96: SiO2 4 %-Al2O3 96 %) was investigated. The following methods were applied in experiments: spectrophotometry, viscosimetry, potentiometric titration, and microelectrophoresis, which enable determination of adsorbed amount of the pol...

Hand sanitizer adalah antiseptik yang efektif karena mudah untuk dibawa kemanapun. biasanya mengandung 60-80% senyawa alkohol. Penggunaan alkohol secara terus menerus dapat mengakibatkan iritasi dan kulit kering. Alkohol dalam hand dikurangi dengan cara menambahkan bahan alami bersifat antiseptik. Alternatif digunakan tanaman lidah buaya. Daging buaya flavonoid, saponin, tanin, gliserin polifen...

Objective- To evaluate the application of Carbomer 940 hydrogel on saving zone of stasis in skin burn wound. Design- Experimental study Animals- Twenty rats. Procedures- After shaving the backs, a ‘comb burn’ was contacted bilaterally on the dorsum of the rats 0.5 cm lateral and parallel to the midline by usin...

Nutmeg seed oil is one of essential which unstable in storage. The stability nutmeg can be improved by being formulated into an emulgel with carbopol 940. This study was to determine the physical and SPF value vitro 940 as a gel base. made 10% concentration variation base, namely 0.60% (FI), 0.80% (FII), 1.0% (FIII). tested for including organoleptic, homogeneity, adhesion, dispersibility, visc...

This work is devoted to the synthesis and stabilization of magnetorheological suspensions constituted by monodisperse micrometer-sized magnetite spheres in aqueous media. The electrical double-layer characteristics of the solid/liquid interface were studied in the absence and presence of adsorbed layers of high molecular weight polyacrylic acids (PAA; Carbopol). Since the Carbopol-covered parti...

Brucella abortus and polyacrylic acid, two agents whose interferon-inducing capacity in the mouse has been well established, failed to stimulate circulating interferon production in rabbits, yet protected rabbits against local vaccinia virus infection.