The bentonites in pelotherapy: thermal properties of clay pastes from Sardinia (Italy)

Cara, Stefano; Carcangiu, Gianfranco; Padalino, G.; Palomba, M.; Tamanini, Massimo

doi:10.1016/s0169-1317(99)00050-2

Cited by 91 publications

(37 citation statements)

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“…Clay pastes used in pelotherapy should have apparent viscosities of approximately 4 Pa s at 10 rpm and peloids with very low viscosities are not suitable for use in therapy (Cara et al, 2000b;Yvon and Ferrand, 1996). Viscosities closest to this value were measured in samples P-1, 1/1, 6/1, 15, and 16.…”

Section: Discussionmentioning

confidence: 99%

“…Carretero and Pozo (2009) reported that the use of various clay minerals in hot springs and therapy depends on the grain size, low hardness, rheological properties, high moisture content, cation exchange capacity (CEC), and heat retention properties. The high proportion of the smectite group minerals in peloids makes them suitable for use in healing applications due to their swelling potential (water absorption), surface area and CEC (enabling the retention of unwanted elements), and specific heat (enabling the application of the mud bandage/mask for long periods of time) (Cara et al, 2000a(Cara et al, , 2000b. Peloids containing carbonate group minerals, on the other hand, are especially suitable for psoriasis because they improve the subcutaneous circulation and suitable layering of the epidermis (Lopez et al, 2008).…”

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confidence: 99%

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The physical and physicochemical properties of some Turkish thermal muds and pure clay minerals and their uses in therapy

Karakaya¹,

Karakaya²,

Aydin³

2017

Turkish J Earth Sci

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The physical and physicochemical properties of thermal muds (peloids) from 20 spas in Turkey were defined and compared with those of naturally pure clay minerals, smectite, illite, sepiolite, and kaolinite, to define the suitability of their use in pastes, masks, creams, and/or mud baths. The liquid and plastic limit values of the peloids show medium to high plasticity. The values of the pure clay minerals vary from 110 to 369 and 60 to 130, respectively, being higher than those of the peloid samples except for illite and kaolinite. The peloid samples show very soft, soft, semihard, hard, and fluid properties according to the consistency index. The CEC values of the peloids vary from 10.11 to 36.01 meq/100 g. The abrasivity of the peloids and clay minerals ranges from 0.58 to 3.12 mg/m 2 and 0.05 to 0.37 mg/m 2 , respectively. The viscosity values of the peloid samples are variable and the thixotropic values are considerably higher in some peloid samples. In the pure clay minerals, sepiolite shows high values. The oil absorption capacity of sepiolite is higher than that of the other clay minerals. The peloids with high CEC, swelling, and absorption capacity may be suitable for the removal of oils, toxins, and contaminants from the skin.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

The physical and physicochemical properties of some Turkish thermal muds and pure clay minerals and their uses in therapy

Karakaya¹,

Karakaya²,

Aydin³

2017

Turkish J Earth Sci

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“…The Table 3 shows that contents of macro elements SiO 2 , MgO and Al 2 O 3 were 43.65%, 15.34% and 7.3%, respectively and this peloid is first sediment. A high Na 2 O/CaO ratio indicates the presence of swelling 2:1 clay minerals (1<Na 2 O/CaO>3), while a low ratio (Na 2 O/CaO<1) is typical for non-swelling 2:1 clay minerals [11,12].…”

Section: Figure1 Xrd Pattern Of Peloid From Lake Nogoonmentioning

confidence: 99%

Chemical Investigation of Medical Mud From Lake Nogoon

Dolmaa

Batkhishig

Tserenkhand

et al. 2018

Proc. Mong. Acad. Sci.

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“…Therefore, being considered medicines they could participate in pharmaceutical formulations as active principles and/or as excipients (Viseras and López-Galindo 1999;Lopez-Galindo and Viseras 2004;Lopez-Galindo et al 2007;Viseras et al 2007Viseras et al , 2010. In particular, the use of bentonite and kaolin in human health has been the object of significant research (Novelli 1996(Novelli , 1998(Novelli , 2000Cara et al 2000;Viseras et al 2006;Williams et al 2009;Williams and Hiller 2014;Casás et al 2011;Carretero et al 2013).…”

Section: Clay/clay Minerals and Human Healthmentioning

confidence: 99%

Healing and edible clays: a review of basic concepts, benefits and risks

Gomes

2017

Environ Geochem Health

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The use of clay by humans for medicinal and wellness purposes is most probably as old as mankind. Within minerals, due to its ubiquitous occurrence in nature and easy availability, clay was the first to be used and is still used worldwide. Healing clays have been traditionally used by man for therapeutic, nutritional and skin care purposes, but they could impart some important health and skin care risks. For instance, clay particles could adsorb and make available for elimination or excretion any potential toxic elements or toxins being ingested or produced, but they could adsorb and make available for incorporation, through ingestion or through dermal absorption, toxic elements, e.g. heavy metals. Edible clays, a particular case of healing clays, have been traditionally used by man for nutritional and therapeutic purposes. Geophagy, the deliberate soil eating, earth eating, clay eating and pica (medical condition or eating disorder shown by individuals addicted to eat earth substances), has been observed in all parts of the world since antiquity, reflecting cultural practice, religious belief and physiological needs, be they nutritional (dietary supplementation) or as a remedy for disease. This paper pretends to review historical data, basic concepts and functions, as well as benefits and risks of the use of healing clays, in general, for therapeutic and cosmetic purposes, and of edible clays, in particular, for therapeutic purposes.

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The bentonites in pelotherapy: thermal properties of clay pastes from Sardinia (Italy)

Cited by 91 publications

References 3 publications

The physical and physicochemical properties of some Turkish thermal muds and pure clay minerals and their uses in therapy

The physical and physicochemical properties of some Turkish thermal muds and pure clay minerals and their uses in therapy

Chemical Investigation of Medical Mud From Lake Nogoon

Healing and edible clays: a review of basic concepts, benefits and risks

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