Highly effective, regiospecific reduction of chalcone by cyanobacteria leads to the formation of dihydrochalcone: two steps towards natural sweetness

Table 2 GC–MS data for compounds 1–6

No.	Compound	RT (min)	Fragment ions
1	Chalcone	32.80	208.1 [M]⁺, 207.1, 179.2, 165.1, 152.2, 131.1, 103.1, 89.2, 77.1
2	Dihydrochalcone	28.40	210.1 [M]⁺, 106.0, 105.0, 91.2, 77.1, 51.0
3	1,3-Diphenyl-2-propen-1-ol	30.20	208.1 [M]⁺, 121.1, 105.1, 91.1, 77.1, 51.1
4	1,3-Diphenylpropan-1-ol	28.20	208.1 [M]⁺, 107.1, 92.1, 79.0, 65.1, 51.0
5	Cinnamic acid	13.60	148.1, 147.1 [M]⁺, 131.1, 119.1, 103.1, 91.1, 77.1, 51.2
6	Hydrocinnamic acid	10.60	150.0 [M]⁺, 131.1, 104.1, 91.2, 78.1, 65.1, 51.1

ISSN: 1475-2859