Abstract
Tuberose cut flowers, available as loose flowers, were treated with gamma (γ) irradiation and generally regarded as safe (GRAS) preservative solutions for extension of shelf life. The flowers were packaged in low-density polyethylene bags, heat sealed and stored at 23 ± 2°C, 80% relative humidity (RH) and 4 ± 1°C, 40% RH, respectively. The flowers stored at these two temperature regimes were subjected to sensory evaluation and biochemical analyses. From these assessments, the longest shelf life of tuberose flowers was found to be 8 days at 23 ± 2°C, 80% RH (compared to 4 days for control) and 24 days at 4 ± 1°C, 40% RH (compared to 8 days for control) using combination treatment of low dose γ-irradiation (0.02 kGy) and preservative solutions (4% sucrose and 0.02% CaCl2). Ethanolic extract of tuberose flowers of the most shelf stable set (stored at 4 ± 1°C), i.e. at the end of 24 days, showed antimicrobial potency against the common skin pathogen Staphylococcus aureus (ATCC 25923 and MDR strains), suggesting utility of the senesced tuberose flowers for therapeutic applications. This preservation technique would promote export of tuberose flowers by extension of their shelf lives and allow utilization of these flowers, post senescence.
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Claims 3
Claim · model-written summary
Combined irradiation and preservatives extended tuberose shelf life to 8 days versus 4 days at 23 ± 2°C.
- Taxon
- tuberose
Agave amicae0 - Treatment
- combination treatment of low dose γ-irradiation (0.02 kGy) and preservative solutions (4% sucrose and 0.02% CaCl2)e1
- Outcome
- shelf lifee0
- Direction
- longeste0
- Value
- 8 dayse0
- Qualifier
- 4 dayse0
- Comparator
- controle0
- Setting
- 23 ± 2°C, 80% RHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the longest shelf life of tuberose flowers was found to be 8 days at 23 ± 2°C, 80% RH (compared to 4 days for control)”
e1“combination treatment of low dose γ-irradiation (0.02 kGy) and preservative solutions (4% sucrose and 0.02% CaCl2)”
Claim · model-written summary
Combined irradiation and preservatives extended tuberose shelf life to 24 days versus 8 days at 4 ± 1°C.
- Taxon
- tuberoseAgave amicae1
- Treatment
- combination treatment of low dose γ-irradiation (0.02 kGy) and preservative solutions (4% sucrose and 0.02% CaCl2)e2
- Outcome
- shelf lifee1
- Direction
- longeste1
- Value
- 24 dayse0
- Qualifier
- 8 dayse0
- Comparator
- controle0
- Setting
- 4 ± 1°C, 40% RHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“24 days at 4 ± 1°C, 40% RH (compared to 8 days for control)”
e1“the longest shelf life of tuberose flowers”
e2“combination treatment of low dose γ-irradiation (0.02 kGy) and preservative solutions (4% sucrose and 0.02% CaCl2)”
Claim · model-written summary
Ethanolic extract from 24 day stored tuberose flowers had antimicrobial potency against Staphylococcus aureus.
- Taxon
- tuberoseAgave amicae0
- Organ / stage
- flowerse0
- Interactor
- Staphylococcus aureus
Staphylococcus aureuse0pathogen - Outcome
- antimicrobial potency against the common skin pathogen Staphylococcus aureuse0
- Qualifier
- at the end of 24 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethanolic extract of tuberose flowers of the most shelf stable set (stored at 4 ± 1°C), i.e. at the end of 24 days, showed antimicrobial potency against the common skin pathogen Staphylococcus aureus (ATCC 25923 and MDR strains)”
The same questions in other papers
sucrose · quality: postharvest · Agave amica (tuberose)Results differ
19 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
17 papers more in this group
See all 21 papers →calcium chloride dihydrate · quality: postharvest · Agave amica (tuberose)Positive and negative results
1 in the opposite direction
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.