Effects of raw and heated palygorskite on rumen fermentation in vitro

Zeng, Hanfang; Lin, Limei; Xi, Yumeng; Han, Zhaoyu

doi:10.1016/j.clay.2017.01.006

Cited by 23 publications

(13 citation statements)

References 41 publications

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“…In the present study, Zn-Pal has more cation-exchange capacity than palygorskite. This finding is consistent with the result of Zeng et al [25], who reported that adding 3% palygorskite or heated palygorskite in vitro was beneficial for nitrogen use and MCP synthesis. It has also proved that milk protein yield increased with 10 kg/t of supplemental dietary palygorskite in diets [26].…”

Section: Discussionsupporting

confidence: 93%

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Effects of zinc-bearing palygorskite on rumen fermentation in vitro

Chen

Zhang

et al. 2019

Asian-Australas J Anim Sci

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Section: Discussionsupporting

confidence: 93%

“…Salem et al [29] reported the addition of 12 g/d of bentonite to the sheep diet resulted in an increase of total VFA. Zeng et al [25] showed palygorskite and heated palygorskite supplementation increased VFA concentrations in the rumen. All of these results indicate that silicate could improve rumen fermentation and VFA formation.…”

Section: Discussionmentioning

confidence: 99%

Effects of zinc-bearing palygorskite on rumen fermentation in vitro

Chen

Zhang

et al. 2019

Asian-Australas J Anim Sci

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“…Total CEC values were inside the expected CEC limits for sepiolite (9.18 mEq/100 g) and palygorskite (16.29 mEq/100 g) [ 68 , 69 ]. Sepiolite and palygorskite CEC are usually <25 mEq/100 g [ 70 ] with higher values usually related to impurities [ 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 ]. The higher CEC showed by G30 with respect to PS9 could be explained by the presence of 6% w / w of smectites and/or sepiolite in G30, as previously described.…”

Section: Resultsmentioning

confidence: 99%

Wound Healing Activity of Nanoclay/Spring Water Hydrogels

et al. 2020

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Background: hydrogels prepared with natural inorganic excipients and spring waters are commonly used in medical hydrology. Design of these clay-based formulations continues to be a field scarcely addressed. Safety and wound healing properties of different fibrous nanoclay/spring water hydrogels were addressed. Methods: in vitro biocompatibility, by means of MTT assay, and wound healing properties were studied. Confocal Laser Scanning Microscopy was used to study the morphology of fibroblasts during the wound healing process. Results: all the ingredients demonstrated to be biocompatible towards fibroblasts. Particularly, the formulation of nanoclays as hydrogels improved biocompatibility with respect to powder samples at the same concentration. Spring waters and hydrogels were even able to promote in vitro fibroblasts motility and, therefore, accelerate wound healing with respect to the control. Conclusion: fibrous nanoclay/spring water hydrogels proved to be skin-biocompatible and to possess a high potential as wound healing formulations. Moreover, these results open new prospects for these ingredients to be used in new therapeutic or cosmetic formulations.

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“…For example, there was only a slight decrease in the characteristic reflections of palygorskite for the samples treated at 300 °C. Such behavior happened because there is a loss of zeolitic water at this temperature and a partial loss of coordinated water [ 69 , 70 , 71 ]. It is still possible to observe peaks characteristic of palygorskite in the Pal-500T sample; however, these reflections disappeared after heat-treatment at 700 °C (Pal-700T).…”

Section: Resultsmentioning

confidence: 99%

Adsorption Behavior of Crystal Violet and Congo Red Dyes on Heat-Treated Brazilian Palygorskite: Kinetic, Isothermal and Thermodynamic Studies

et al. 2021

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The effect of heat treatment on the adsorptive capacity of a Brazilian palygorskite to remove the dyes crystal violet (CV) and congo red (CR) was investigated. The natural palygorskite was calcined at different temperatures (300, 500 and 700 °C) for 4 h. Changes in the palygorskite structure were evaluated using X-ray diffraction, X-ray fluorescence, thermogravimetric and differential thermal analysis, N2 adsorption/desorption and Fourier transform infrared spectroscopy. The adsorption efficiency of CV and CR was investigated through the effect of initial concentration, contact time, temperature, pH and dosage of adsorbent. The calcination increased the adsorption capacity of palygorskite, and the greatest adsorption capacity of CV and CR dyes occurred in the sample calcined at 700 °C (Pal-700T). The natural and calcined samples at 300 and 500 °C followed the Freundlich isothermal model, while the Pal-700T followed the Langmuir isothermal model. Adsorption kinetics results were well described by the Elovich model. Pal-700T showed better adsorption performance at basic pH, with removal greater than 98%, for both dyes. Pal-700T proved to be a great candidate for removing cationic and anionic dyes present in water.

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Effects of raw and heated palygorskite on rumen fermentation in vitro

Cited by 23 publications

References 41 publications

Effects of zinc-bearing palygorskite on rumen fermentation in vitro

Effects of zinc-bearing palygorskite on rumen fermentation in vitro

Wound Healing Activity of Nanoclay/Spring Water Hydrogels

Adsorption Behavior of Crystal Violet and Congo Red Dyes on Heat-Treated Brazilian Palygorskite: Kinetic, Isothermal and Thermodynamic Studies

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