Studies on radiation stability of natural caffeine

被引：4
|
作者：
Mitra, Sayantani [1 ]
Naskar, Nabanita [2 ]
Ghosh, Kalpita [3 ]
Dutta, Aparna [4 ]
Lahiri, Susanta [2 ,5 ]
Chaudhuri, Punarbasu [1 ]
Saha, Abhijit [4 ]
机构：
[1] Univ Calcutta, Dept Environm Sci, 35 Ballygunge Circular Rd, Kolkata 700019, India
[2] Saha Inst Nucl Phys, 1-AF Bidhannagar, Kolkata 700064, India
[3] Charuchandra Coll, Dept Chem, 22 Lake Pl Rd, Kolkata 700029, India
[4] Kolkata Ctr, UGC DAE Consortium Sci Res, 3-LB-8 Bidhannagar, Kolkata 700098, India
[5] Homi Bhabha Natl Inst, Mumbai, Maharashtra, India
来源：
APPLIED RADIATION AND ISOTOPES | 2022年 / 183卷
关键词：
Caffeine; gamma radiation; Radiolytic degradation; Radiation chemical yield; GAMMA-IRRADIATION; AQUEOUS-SOLUTION; DEGRADATION; DECOMPOSITION; METHYLXANTHINES; OXIDATION; WATER; GOLD; ACID;
D O I：
10.1016/j.apradiso.2022.110148
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Behavior of isolated caffeine in Co-60- gamma radiation environment was studied in solid form as well as in aqueous medium. No degradation in solid caffeine structure was observed after exposing up to a dose of 10 kGy. In aqueous medium, 98% radiolytic degradation of caffeine was observed after application of 1.26 kGy gamma dose. Radiation chemical yield decreased with increasing dose. The degradation was mostly favored in neutral medium. Addition of ethanol decreased the radiolytic degradation efficiency.
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页数：12
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