Significance of Acid insoluble ash
Acid insoluble ash is a critical measurement in evaluating the purity and quality of herbal samples. It refers to the portion of total ash that remains undissolved after treatment with acid, providing insights into the inorganic material content and potential impurities in the sample. This measurement, performed using dilute hydrochloric acid, helps assess the presence of non-soluble minerals, siliceous compounds, and contaminants, thereby influencing the bioavailability and overall effectiveness of herbal formulations and Ayurvedic preparations.
Synonyms: Residue
The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.
The concept of Acid insoluble ash in scientific sources
Acid insoluble ash denotes the part of total ash resistant to acid, serving as a quality control indicator for inorganic content in herbal products, evidenced by specific percentages in Mehamudgara vati and Kuberaksha leaf powder.
From: World Journal of Pharmaceutical Research
(1) The portion of total ash that remains insoluble in dilute hydrochloric acid, indicative of purity.[1] (2) The portion of ash that remains after treating a sample with acid, used to assess the quality of herbal drugs.[2] (3) Measurement of residues that remain after treatment with acid to evaluate the purity of herbal drugs.[3] (4) A measurement indicating the non-soluble residue remaining after the ash of the sample is treated in acid, indicating purity.[4] (5) The portion of ash that does not dissolve in acid, used to assess the purity of plant material.[5]
From: International Ayurvedic Medical Journal
(1) The portion of ash that remains after treating a sample with dilute acid, indicating the level of certain inorganic materials.[6] (2) The portion of ash that does not dissolve in acid, indicative of silicates and other minerals that remain after chemical treatment.[7] (3) A quality measure that defines the residue remaining after the Bhasma is treated with acid, indicating the presence of impurities.[8] (4) Assesses the silicate or sand present in the samples, a measure of the purity regarding non-plant material.[9] (5) The residue that remains after treating ash with acid, indicating solubility and purity in Ayurvedic formulations.[10]
From: AYU (Journal of Research in Ayurveda)
(1) The portion of ash that does not dissolve in acid, providing insight into the quality and purity of the sample.[11] (2) Acid-insoluble ash refers to the portion of ash that remains undissolved after treatment with acid, indicating the content of residue and impurities in the preparations.[12] (3) The part of the ash that is not soluble in acid, quantified as 0.386% w/w in the leaves.[13] (4) A parameter measured during physical evaluation indicating inorganic residue left after the acid treatment of the drug.[14] (5) The fraction of total ash that is not soluble in acid, measured at 0.052% w/v.[15]
From: Ayushdhara journal
(1) The residue remaining after treating ash with acid, indicating the amount of siliceous material present.[16] (2) A measure of the inorganic residues remaining after a drug is incinerated; indicates the presence of contaminants and heavy metals.[17] (3) The portion of ash that remains after treatment with hydrochloric acid, useful for assessing the purity of samples.[18] (4) The fraction of ash that does not dissolve in dilute acid, indicating the inorganic content of the samples.[19] (5) The residue remaining after the sample is treated with acid; an important parameter indicating the amount of inorganic material left in the haratal.[20]
From: Ancient Science of Life
(1) The portion of ash that does not dissolve in acid, providing information about the composition of the remaining minerals.[21] (2) The residue remaining after a substance is treated with acid, used to evaluate the mineral content and purity.[22] (3) The portion of ash that remains undissolved in acid, which was analyzed to further assess the characteristics of Cocculus hirsutus.[23]
From: Journal of Ayurveda and Holistic Medicine
(1) The portion of ash not dissolvable in acid, indicating the quality and bioavailability of the material in Khageshwara Rasa.[24]
From: Journal of Ayurveda and Integrative Medicine
(1) The portion of Yashada bhasma residue that remains undissolved after treatment with hydrochloric acid, indicating specific mineral content.[25]