DL-tartaric acid

• CAS: 526-83-0
• Catalog Number: ALC-FP-526830
• Category: Featured Products
• Appearance: Almost white powder
• Sample Lot No.: A23X11231

Case Study

Tartaric Acid for Enhancing Hydroxyapatite Coatings on Mg Alloys

Korrani AM, et al. International Journal of Biological Macromolecules, 2025, 296, 139792.

Tartaric acid was experimentally applied as a functional additive to improve hydroxyapatite (HA) coatings on AZ31 Mg alloys using both direct addition and post-treatment methods. In the direct addition process, HA and tartaric acid were co-deposited under controlled conditions (pH 4.3, 10 g/L HA, 1 g/L tartaric acid, 75 °C, 120 min), enabling uniform incorporation of the organic acid into the inorganic matrix. The post-treatment method involved sequential immersion, first in optimized HA solution and subsequently in 1 g/L tartaric acid at pH 9 for 2 min, promoting surface chelation and crystallinity enhancement. Electrochemical testing showed significant improvements in corrosion resistance, demonstrating the critical role of tartaric acid in tuning coating structure and performance through controlled immersion-based processing.

Tartaric Acid for Thermostable Resistant Starch Production

Mansur AR, et al. LWT, 2025, 229, 118209.

Tartaric acid was applied as an esterification and crosslinking reagent to modify native tapioca starch for generating thermostable resistant starch. In this study, tapioca starch (20 g) was blended with tartaric acid solutions (1-3 M, pH 1.2), soaked for 16 h, air-dried at 45 °C, and subsequently incubated for 6 h at either 25 or 150 °C. The experimental results highlight that tartaric acid required high-temperature treatment (150 °C) to achieve effective esterification, with 3 M TA producing a degree of substitution of 0.744 and extensive crosslinking. This TA-treated starch exhibited disrupted granule morphology, reduced crystallinity, minimal gelatinization, and a high resistant starch content (97.5 %). The experimental workflow demonstrates tartaric acid's applicability for producing thermostable RS-rich starch suitable for bio-based packaging applications.

Tartaric Acid for the Preparation of Thermostable Resistant Starch-Rich Tapioca Starch

Li H, et al. Cement and Concrete Composites, 2022, 129, 104466.

This study investigated the application of tartaric acid (TA) in producing thermostable resistant starch (RS)-rich tapioca starch. Native starch was blended with TA solutions (1-3 M, pH 1.2) and pre-soaked for 16 h at 20-25 °C, followed by drying at 45 °C. The mixtures were incubated for 6 h at either 25 or 150 °C to induce esterification, with effective modification observed only under heat. Post-reaction, samples were sequentially rinsed with distilled water and 95 % ethanol, dried, ground, and sieved to <150 μm. TA-treated starch (3 M, 150 °C) exhibited high crosslinking, disrupted granule morphology, and 97.5 % thermostable RS, demonstrating minimal gelatinization and viscosity. This method highlights TA's practical application in generating RS-rich starch for potential bio-based food packaging systems.