Copolyesters based on s-triazine moiety: Synthesis and characterization

885-891Ten copolyesters have been synthesized by high temperature polycondensation of 2-(β-naphthylamino)-4,6-bis(naphthoxy-3-carbonyl chloride)-s-triazine [NANCCT] with each of the mixture of diols:[Bisphenol-A(BPA)+ Bisphenol-C(BPC)], [BPA+Hydroquinone(Hq)], [BPA+1,5-Dihydroy naphthalene(1,5-DHN)], [BPA+1,4–Dihydroy anthraquinone(1,4-DHA)], [BPA+Catechol(C)], [BPA+Resorcinol(R)], [BPA+Ph], [Ph+1,4-DHA], [Ph+C] and [Ph+R]. All the copolyesters have been characterized by solubility, density, viscosity measurements, IR and NMR spectra, and thermogravimetric analysis. All the copolyesters are soluble at high temperature in acetone, dimethylformamide (DMF), dimethylsulphoxide (DMSO), dimethylacetamide (DMA), etc. and have reduced viscosity in the range 0.400-0.641 dL/g in DMF at 30ºC. Copolyester derived from diol mixture[BPA+1,4-DHA] show greater thermal stability than the other copolyesters

Multivariate Analysis of Tridoshagna Varga of Sidhhamantra Nighantu

Sidhhamantra Nighantu is one such unique lexicon which has a chapter named as Tridoshaghna Varga which enlists the drugs which pacify one, two or all the three Doshas i.e., Vata, Pitta and Kapha. Drugs pacifying all the three Doshas are unique in their Rasa Panchaka in terms of specific combination of Rasa, Guna, Virya and Vipaka. The Tridoshaghna concept and this chapter both stand unique and hence the present chapter was selected for its exploration through multiple correspondence analysis. Materials and Methods: All the relevant information about the drugs like their Botanical identity, family, Rasa, Guna, Virya and Vipaka of Tridoshaghna varga was collected with the help of previous and successive texts of Sidhhamantra Nighantu. The collected information was subjected to multiple correspondence analysis. Result: The chapter Tridoshaghna Varga enlists several substances of herbal origin, metallic/mineral origin and animal origin. MCA revealed that the combination of Sheeta Virya and Madhura Vipaka with the combination of Tikta and/or Katu Rasa can be the best properties for Tridoshaghna action in majority diseased conditions. Conclusion: The study data should be considered while clinical practice by clinicians and further studies should be carried out on the nutritional foods included in the chapter for better understanding of Aahara (nutritional herbs) as well as Aushadha (medicinal herbs) for Tridoshaghna action

Glimpses of Patala (Stereospermum Suaveolens roxb. Dc.) in Rasashastra: A Review

In the universe of Ayurveda, Patala (Stereospermum suaveolens Roxb. DC.) is renowned drug credited with variety of therapeutic properties as well as other specific uses. It is also the member of much celebrated Mishraka Varga like Bruhatpanchmoola and Dashmoola. Rasashastra i.e., Indian alchemy or Iatrochemistry deals primarily with metals, minerals, gems etc. but it is inseparable from different flora and fauna. This sincere attempt helps ease out the efforts to draw information on Patala, Bruhatpanchmoola and Dashmoola from Rasashastra domain. For this purpose, information pertaining to Patala and other two herbal groups was screened from classical Rasashastra texts available at central library of ITRA, Jamnagar. Gathered information according to relevance and specificity was arranged in tabular form under the headings like name of group, processes like Shodhana, Marana, formulation name, mode of administration, dosage form etc. Total 18 groups of herbs, 164 formulations (excluding references of processes like Shodhana/Marana) were found having their therapeutic efficacy in almost 28 indications with 14 dosage forms at their disposal. Dashmoola in formulations, Jvara in therapeutic indications and Rasaushadhi in dosage forms were found in majority. Lastly general information of Patala, in the context of Dinacharya, Rutucharya, Rasashala, its simile also quoted. This review depicts multimodal applications of Patala along with its group of herbs in Rasashastra. The write-up will serve as in hand guide for the knowledge of Patala and its associated groups of herbs in the branch of Rasashastra