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Table 5 Antibacterial and antioxidant activity of guava leaf extract and jellies

From: Extraction of bioactive compounds from Psidium guajava leaves and its utilization in preparation of jellies

Samples

Antibacterial activity—zone of inhibition (mm)

Antioxidant activity (%)

P. vulgaris

S. mutans

B. subtilis

S. aureus

DPPH radical

Hydroxyl radical

Guava leaf extract

12.1 ± 0.03

13.3 ± 0.01

14.1 ± 0.02

13.6 ± 0.01

47.87 ± 0.07

43.36 ± 0.06

Ampicillin

03.3 ± 0.01

14.7 ± 0.05

13.6 ± 0.01

15.8 ± 0.04

Control jelly (CJ)

03.1 ± 0.04

07.2 ± 0.01

05.2 ± 0.02

07.7 ± 0.03

26.23 ± 0.04

20.08 ± 0.05

Guava jelly (GJ)

11.4 ± 0.06

12.9 ± 0.01

13.6 ± 0.07

13.1 ± 0.03

42.38 ± 0.06

33.44 ± 0.04

  1. Data is expressed as mean ± standard deviation