Abstract
Background and Objective: The consumption of fruits and vegetables is recommended for humans to increase immunity and reduce the risk of many chronic diseases. High moisture content and minimal processing of fruits and vegetables with high demand by consumers bring to fore the need for preservation. This study was carried out to ascertain the preservation potential of the leaf of Ocimum gratissimum (O. gratissimum) on fresh cut Cucumis sativus (C. sativus). Materials and Methods: Ocimum gratissimum leaves were collected and extracted with different solvents: Ethanol and hexane. The extracts were used to determine the quality of fresh cut C. sativus stored for 9 days using dipping method. The following quality parameters were assessed: Carotenoids, ascorbic acid, total phenolic acid, pH, total soluble solids, turbidity, microbial loads and moisture contents. Furthermore, qualitative and quantitative phytochemical analyses of the extracts were determined and essential oil constituents were established with the aid of GC-MS. Data obtained were subjected to descriptive analysis using SPSS analysis (Version 20.0). Results: Cucumis sativus treated with O. gratissimum extracts had lower moisture content, pH and brix values of the total soluble solids than untreated C. sativus. The ascorbic acid, phenolic and carotenoids contents of C. sativus treated with O. gratissimum extracts had lower values than untreated C. sativus. The total load of microbes in C. sativus treated with O. gratissimum extracts was lower than untreated C. sativus. Flavonoid, alkaloid, cardiac glycoside, phenol, tannin, steroid, anthraquinone and saponin were present in O. gratissimum leaves. The essential oils isolated from O. gratissimum included -terpinene, caryophyllene, oleic acid and (E)-9-octadecenoic acid. Conclusion: This study established that the leaf extracts of O. gratissimum have bio-preservation potential that can be used to enhance the shelf of C. sativus.
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Claims 9
Claim · model-written summary
Ocimum extracts lowered moisture content, pH and soluble-solids brix in fresh cut cucumber relative to untreated cucumber.
- Taxon
- Cucumis sativus
Cucumis sativuse0 - Treatment
- O. gratissimum extractse0
- Outcome
- moisture content, pH and brix values of the total soluble solidse0
- Direction
- lowere0
- Comparator
- untreated C. sativuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cucumis sativus treated with O. gratissimum extracts had lower moisture content, pH and brix values of the total soluble solids than untreated C. sativus”
Claim · model-written summary
Ocimum extract treatment lowered cucumber ascorbic acid, phenolic and carotenoid contents relative to untreated cucumber.
- Taxon
- C. sativusCucumis sativuse0
- Treatment
- O. gratissimum extractse0
- Outcome
- ascorbic acid, phenolic and carotenoids contentse0
- Direction
- lower valuese0
- Comparator
- untreated C. sativuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ascorbic acid, phenolic and carotenoids contents of C. sativus treated with O. gratissimum extracts had lower values than untreated C. sativus”
Claim · model-written summary
Ocimum extract treatment lowered the microbial load on cucumber relative to untreated cucumber.
- Taxon
- C. sativusCucumis sativuse0
- Treatment
- O. gratissimum extractse0
- Interactor
- microbese0other
- Outcome
- total load of microbese0
- Direction
- lowere0
- Comparator
- untreated C. sativuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total load of microbes in C. sativus treated with O. gratissimum extracts was lower than untreated C. sativus”
Claim · model-written summary
Ocimum leaves contained eight reported phytochemical classes.
- Taxon
- O. gratissimum
Ocimum gratissimume0 - Organ / stage
- leavese0
- Outcome
- Flavonoid, alkaloid, cardiac glycosidee0
- Direction
- presente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flavonoid, alkaloid, cardiac glycoside, phenol, tannin, steroid, anthraquinone and saponin were present in O. gratissimum leaves”
Claim · model-written summary
Phenol, tannin and steroid were present in Ocimum leaves.
- Taxon
- O. gratissimumOcimum gratissimume0
- Organ / stage
- leavese0
- Outcome
- phenol, tannin, steroide0
- Direction
- presente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Flavonoid, alkaloid, cardiac glycoside, phenol, tannin, steroid, anthraquinone and saponin were present in O. gratissimum leaves”
Claim · model-written summary
Anthraquinone and saponin were present in Ocimum leaves.
- Taxon
- O. gratissimumOcimum gratissimume0
- Organ / stage
- leavese0
- Outcome
- anthraquinone and saponine0
- Direction
- presente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“anthraquinone and saponin were present in O. gratissimum leaves”
Claim · model-written summary
Ocimum essential oil contained terpinene, caryophyllene and oleic acid.
- Taxon
- O. gratissimumOcimum gratissimume0
- Outcome
- -terpinene, caryophyllene, oleic acide0
- Direction
- includede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential oils isolated from O. gratissimum included -terpinene, caryophyllene, oleic acid and (E)-9-octadecenoic acid”
Claim · model-written summary
Ocimum essential oil contained (E)-9-octadecenoic acid.
- Taxon
- O. gratissimumOcimum gratissimume0
- Outcome
- (E)-9-octadecenoic acide0
- Direction
- includede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The essential oils isolated from O. gratissimum included -terpinene, caryophyllene, oleic acid and (E)-9-octadecenoic acid”
Claim · model-written summary
The authors conclude that Ocimum leaf extracts have potential to preserve fresh cut cucumber.
- Taxon
- C. sativusCucumis sativuse0
- Treatment
- leaf extracts of O. gratissimume0
- Outcome
- enhance the shelf of C. sativuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf extracts of O. gratissimum have bio-preservation potential that can be used to enhance the shelf of C. sativus”
The same questions in other papers
botanical · physiology: pigments · Cucumis sativus (cucumber)Positive and negative results
4 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →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.