Anti-migraine activity of freeze-dried latex obtained from Calotropis gigantea Linn

Saurabh Bhatia, Ahmed Al-Harrasi, Arun Kumar, Tapan Behl, Aayush Sehgal, Sukhbir Singh, Neelam Sharma, Md Khalid Anwer, Deepak Kaushik, Vineet Mittal, Sridevi Chigurupati, Pritam Babu Sharma, Lotfi Aleya, Celia Vargas-de-la-Cruz, Md Tanvir Kabir

Research output: Contribution to journalArticlepeer-review


Migraine which is characterized by a pulsating headache affected an estimated population of 12% worldwide. Herbal products like latex derived from Calotropis gigantea R. Br. (Asclepiadaceae) are a representative intervention to treat migraine traditionally. However, post-harvesting stability issues of latex affect its biological potential. Freeze-drying has been successfully employed for the encapsulation of herbal bioactive compounds resulting in stable dried preparations. Latex derived from Calotropis gigantea (C. gigantea) was microencapsulated using chitosan by freeze-drying (FDCG) method and compared with sun ray–dried latex (ADCG). Current investigation was aimed to improve the shelf life of latex by freeze-drying microencapsulation technique and evaluation of its anti-migraine potential. Dried latex powders (ADCG and FDCG) were evaluated in terms of phenolic content, coloring strength, first-order kinetic, color parameters (L*, a*, b*, C*, and E*), moisture, water activity, solubility, and hygroscopicity. Additionally, apomorphine-induced climbing behavior, l-5-HTP–induced syndrome, and MK-801–induced hyperactivity were used to evaluate the anti-migraine potential of powdered latex. FDCG showed good physicochemical properties due to its higher concentration of phenolic and flavonoid contents. Moreover, FDCG significantly reduced the apomorphine-induced climbing behavior, l-5-HTP–induced syndrome, and MK-801–induced hyperactivity in a dose-dependent manner through an interaction of dopaminergic and serotonergic receptors. In conclusion, the method developed for shelf life improvement of latex offered maximum protection over a period of 10 weeks with retaining its natural biological potential; thus, it can be effectively utilized in the treatment or management of migraine. Graphical abstract: Anti-migraine effect of Calotropis gigantea freeze-dried latex by inhibition of dopamine and serotonin receptors (D1 and D2: dopamine receptors; 5-HT: serotonin receptors); yellow color represents serotonergic, and blue color indicates dopaminergic neurons [Figure not available: see fulltext.]

Original languageEnglish
JournalEnvironmental Science and Pollution Research
StateAccepted/In press - 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.


  • Calotropis gigantea
  • Freeze-drying
  • Latex
  • Migraine
  • Shelf life


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