Laxative Effects ofRosa damasceneMill in Dogs

Evaluation of adulteration in distillate samples of Rosa damascena Mill using colorimetric sensor arrays, chemometric tools and dispersive liquid-liquid microextraction-GC-MS

INTRODUCTION

Rosa damascena Mill distillate and its essential oil are widely used in cosmetics, perfumes and food industries. Therefore, the methods of detection for its authentication is an important issue.

OBJECTIVES

We suggest colorimetric sensor array and chemometric methods to discriminate natural Rosa distillate from synthetic adulterates.

MATERIAL AND METHODS

The colour responses of 20 indicators spotted on polyvinylidene fluoride (PVDF) substrate were monitored with a flatbed scanner; then their digital representation was analysed with principal component analysis (PCA), partial least squares-discriminant analysis (PLS-DA) and soft independent modelling of class analogy (SIMCA).

RESULTS

Accurate discrimination of the diluted- and synthetic-mixture samples from the original ones was achieved by PLS-DA and SIMCA models with error rate of 0.01 and 0, specificity of 0.98 and 1, sensitivity of 1 and 1, and accuracy of 0.98 and 0.96, respectively. Discrimination of the synthetic adulterate from the original samples was achieved with error rate of 0.03 and 0.03, specificity of 0.94 and 0.93, sensitivity of 1 and 1, and accuracy of 0.93 and 0.71 with PLS-DA and SIMCA models, respectively. Moreover, the chemical constituents of the samples were analysed using dispersive liquid-liquid microextraction and gas chromatography-mass spectrometry (GC-MS). The main constituents of the distillate were geraniol, citronellol, and phenylethyl alcohol in different percentages, in both original and synthetic adulterate samples.

CONCLUSION

These results point out the successful combination of colorimetric sensor array and PLS-DA and SIMCA as a fast, sensitive and inexpensive screening tool for discrimination of original samples of R. damascena Mill distillate from those prepared from synthetic Rosa essential oils.

Chemical constituents, experimental and clinical pharmacology of Rosa damascena: a literature review

CONTEXT

Rosa damascena Mill. is prescribed for the management of chest and abdominal pain, constipation, digestive disorders, menstrual bleeding and liver ailments.

OBJECTIVE

The current review compiles up to date and complete information of whole plant of R. damascena with particular emphasis on its numerous scientifically proved pharmacological effects, traditional and folk medicinal uses.

KEY FINDING

The data on the pharmacological effects of R. damascena were collected from various databases such as PubMed, Wiley Online Library, Elsevier and Web of Science using the keywords like phytoconstituents, pharmacology, medicinal uses and biological activity of R. damascene. Rosa damascena has a wide spectrum of bio-pharmacological activity like antidepressant, hypoglycaemic, anti-inflammatory, analgesic, antioxidant and antimicrobial. The main ingredients of R. damascena essential oil responsible for pharmacological activity are geraniol and citronellol. Its uses have been widely accepted in traditional system of medicines for the management of numerous diseases of human beings in different dosage forms.

SUMMARY

Rosa damascena has a significant place in traditional system of medicine. It is cost-effective and an important plant with curative application in contemporary medicine. Further studies on the characterization of chemical constituents and scientific basis of pharmacological activity of R. damascena should be carried out to evaluate its impact on traditional system of medicines. Large-scale preclinical and clinical trials will be beneficial in investigating the mechanism of the therapeutic potential of R. damascene to explore its uses in pharmaceutical industries.