title: Hydrophobic derivatives of guar gum hydrolyzate and gum Arabic as matrices for microencapsulation of mint oil.
abstract: Guar gum hydrolyzate (GGH) modified with n-octenyl succinic anhydride (OSA) and oleic acid having induced hydrophobicity was evaluated for encapsulation of mint oil and compared with gum Arabic (GA) and GA-OSA as wall material. Spray dried microcapsules prepared with these wall materials were evaluated for qualitative changes by principal component analysis and for percent retention of mint oil during 8-week storage. Results revealed that microcapsules with GGH-OSA and GGH-oleate showed slightly lower retention of mint oil as compared to GA. GA-OSA microcapsules showed better retention of mint oil than GA itself, as observed from the t1/2, the time required for the mint oil to come down to 50% of its original content. The t1/2 of mint oil in microcapsules of GA, GGH-oleate, GGH-OSA and GA-OSA was 26.12, 23.50, 24.11 and 29.67 weeks, respectively. The results suggested that GGH-OSA has the potential to replace gum Arabic for encapsulation of mint oil.
authors.affiliation: Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.
authors.forename: Shatabhisa
authors.initials: S
authors.lastname: Sarkar
authors.forename: Sumit
authors.initials: S
authors.lastname: Gupta
authors.forename: Prasad S
authors.initials: PS
authors.lastname: Variyar
authors.forename: Arun
authors.initials: A
authors.lastname: Sharma
authors.forename: Rekha S
authors.initials: RS
authors.lastname: Singhal
mesh_terms: D004339:Drug Compounding / Q000379:methods; D004951:Esterification; D005685:Galactans / Q000737:chemistry*; D006170:Gum Arabic / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D008351:Mannans / Q000737:chemistry*; D027541:Mentha; D008855:Microscopy, Electron, Scanning; D019301:Oleic Acid / Q000737:chemistry*; D053149:Plant Gums / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D013387:Succinic Anhydrides / Q000737:chemistry*
chemical_list: D005685:Galactans; D008351:Mannans; D053149:Plant Gums; D010938:Plant Oils; D013387:Succinic Anhydrides; D019301:Oleic Acid; D006170:Gum Arabic; C007894:guar gum