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. 2019 Jan 11;21:e00306. doi: 10.1016/j.btre.2019.e00306

Table 2.

Identification of the carotenoids in the bacterial extracts and chromatographic and mass spectroscopy properties.

Strain Peak Rt (min) Carotenoid UV-visible spectrum (λmax nm) Characteristic APCI(+) MS pattern
Arthrobacter sp. P40 1 6.36 Decaprenoxanthin diglucoside 417, 442, 471 1029.6 [M+H]+, 1011.6 [M+H-18]+, 849.6 [M+H-180]+
2 10.07 Decaprenoxanthin monoglucoside 417, 442, 471 867.6 [M+H]+, 849.6 [M+H-18]+, 687.5 [M+H-180]+
3 12.61 Decaprenoxanthin 417, 442, 471 705.6 [M+H]+, 687.5 [M+H-18]+, 595.5[M+H-18-92]+
4 17.72 Lycopene 447, 474, 506 537.4 [M+H]+
Cryobacterium sp. P19, Salinibacterium sp. P15, Planococcus sp. P48 5 13.07 C.p. 450 428, 453, 481 705.6 [M+H]+, 687.5 [M+H-18]+, 669.5 [M+H-18-18]+, 613.5 [M+H-92]+
6 12.21 C.p. 450 glucoside 442, 470, 498 849.6 [M+H-18]+, 831.6 [M+H-18-18]+
Flavobacterium sp.P33, Chryseobacterium sp. P36 and Zobellia sp. P7 7 9.41 Zeaxanthin 428, 454, 482 569.4 [M+H]+, 551.4 [M+H-18]+, 477.4 [M+H-92]+
8 14.15 β-Cryptoxanthin 428, 456, 481 553.4 [M+H]+, 535.4 [M+H-18]+, 461.4 [M+H-92]+
9 20.68 β-Carotene 425, 453, 479 537.4 [M+H]+
10 20.48 β-Zeacarotene 407, 429, 454