VSU CASL

25/07/2026

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Ever sliced open a fresh sweet potato and wondered what that milky white liquid oozing out was? 🍠💦
​It’s actually called jalapin—a natural plant latex packed with resin glycosides, and it’s basically the sweet potato’s built-in defense system! 🐛🦠🪲
​Here’s the scoop on this mysterious sap:
●Defends the Plant: When cut or attacked by insects like sweet potato weevils, the tuber releases latex to seal its wound and keep pests away.
●Proof of Freshness: Seeing those droplets form a ring near the skin means your root tuber is super fresh and well-hydrated!
●Varies by Variety: High-starch and pest-resistant cultivars produce way more latex than sweeter, lower-starch types.
●100% Safe: While raw resin can have a mild laxative effect, cooking neutralizes it completely.

18/06/2026

The ABC of spectrophotometry:

11/06/2026

Dr. James A. Patindol, Director of the Visayas State University Central Analytical Services Laboratory (CASL), shared a review paper on the latest analytical platforms for starch structure characterization at the 40th Philippine Chemistry Congress (17th Eurasian Conference on Chemical Sciences) held at the SMX Convention Center, Pasay City on June 10-12, 2026.

From unit chains to supramolecular assembly, the presentation highlighted how modern analytical tools continue to advance our understanding of starch structure and functionality.

Proudly representing VSU and CASL on the national stage.

10/06/2026

We are looking for a Registered Chemical Technician (RChT):

27/05/2026

https://www.facebook.com/share/p/1CSNk3Hk2G/

16/01/2026

Proximate analysis is a standard chemical method to determine the basic nutritional or compositional makeup of materials like food, feed, or biomass, dividing them into key fractions: moisture, ash (minerals), crude protein, crude fat (ether extract), crude fiber, and nitrogen-free extract (carbohydrates). This process provides essential data for nutritional labeling, feed formulation, quality control, and evaluating energy potential, often using the historic Weende system for feeds.

09/01/2026

Congratulations, Dr. James A. Patindol on your reappointment as VSU CASL Director!

Meet Our Heads & Director of the OVPREI Support Offices and Units!

We are proud to announce the reappointment of the following Heads under OVPREI: Dr. Pauline S. Caintic, Head of the ViCARP Secretariat; Ms. Ganessa Rose L. Gongora-Cuevas, Head of the Knowledge Management Unit; Ms. Maria Verjie Q. Subere, Head of the Monitoring and Impact Assessment Unit (formerly Monitoring and Evaluation Unit); and Dr. James A. Patindol, Director of the Central Analytical Services Laboratory.

We are also delighted to welcome Dr. Merry Christ’l S. Guinocor to the OVPREI family as the new Head of the Research Ethics Board (REB), and Dr. Janet Alexis A. De Los Santos, former REB Head, as the Head of the newly established Journal Publication and Printing Unit.

Meanwhile, we congratulate Ms. Maria Louella C. Tambis, Head of the Innovation and Technology Office, and Mr. Julie Bee M. Aguinaldo, Head of the Knowledge Product and Commercialization Office, on their reappointment under the Director for Innovation and Co-creation.

Cheers to the continued success and excellence of OVPREI!

09/01/2026

Meet our CASL core personnel for 2026.