Abstract
Seaweeds are rich sources of bioactive natural products, which have been considered as potential biotic agents. Ulva flexuosa Wulfen is a species of seaweed which is endemic to the Persian Gulf. In this study, the effect of different concentrations of U. flexuosa extract on the antioxidant activity of Washington Navel orange (Citrus sinensis L. cv. Washington Navel) fruits (measured as free radical scavenging activity; FRSA) and postharvest quality of the fruits were evaluated under cold storage (5±1°C) conditions and 85-90% relative humidity up to 60 days. Results indicated that prolonging the storage time increased fruit weight loss, fruit decay and total soluble solids (TSS) contents of the fruits, while prolonging the storage time reduced the percentage of juice and ascorbic acid contents of the fruits. Postharvest quality and antioxidant activity of Washington Navel orange fruit improved significantly when they were immersed in seaweed extracts. The most effective treatment was 3.76 g L-1 concentration of Ulva flexuosa extract, which maximized the improvement of antioxidant capacity, ascorbic acid content and TSS during days of storage (DS). The results of this study indicated that the seaweed extract could be used as a new bioactive agent for maintaining the postharvest quality of orange fruit through enhancing the antioxidant activity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Longer storage increased orange fruit weight loss.
- Taxon
- Washington Navel orange
Citrus sinensist0 - Organ / stage
- fruitse0
- Treatment
- prolonging the storage timee0
- Outcome
- fruit weight losse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging the storage time increased fruit weight loss, fruit decay and total soluble solids (TSS) contents of the fruits”
t0“Washington navel orange fruits”
Claim · model-written summary
Longer storage increased orange fruit decay.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- prolonging the storage timee0
- Outcome
- fruit decaye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging the storage time increased fruit weight loss, fruit decay and total soluble solids (TSS) contents of the fruits”
t0“Washington navel orange fruits”
Claim · model-written summary
Longer storage increased orange fruit total soluble solids.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- prolonging the storage timee0
- Outcome
- total soluble solids (TSS) contentse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging the storage time increased fruit weight loss, fruit decay and total soluble solids (TSS) contents of the fruits”
t0“Washington navel orange fruits”
Claim · model-written summary
Longer storage reduced orange fruit juice percentage.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- prolonging the storage timee0
- Outcome
- percentage of juicee0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging the storage time reduced the percentage of juice and ascorbic acid contents of the fruits”
t0“Washington navel orange fruits”
Claim · model-written summary
Longer storage reduced orange fruit ascorbic acid content.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- prolonging the storage timee0
- Outcome
- ascorbic acid contentse0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“prolonging the storage time reduced the percentage of juice and ascorbic acid contents of the fruits”
t0“Washington navel orange fruits”
Claim · model-written summary
Immersion in seaweed extract significantly improved postharvest orange fruit quality and antioxidant activity.
- Taxon
- Washington Navel orangeCitrus sinensise0
- Treatment
- immersed in seaweed extractse0
- Outcome
- Postharvest quality and antioxidant activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Postharvest quality and antioxidant activity of Washington Navel orange fruit improved significantly when they were immersed in seaweed extracts.”
Claim · model-written summary
The 3.76 g L-1 Ulva flexuosa extract treatment maximized improvement in antioxidant capacity, ascorbic acid content and TSS.
- Taxon
- Washington Navel orangeCitrus sinensist0
- Treatment
- 3.76 g L-1 concentration of Ulva flexuosa extracte0
- Outcome
- antioxidant capacity, ascorbic acid content and TSSe0
- Direction
- maximizede0
- Qualifier
- during days of storage (DS)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most effective treatment was 3.76 g L-1 concentration of Ulva flexuosa extract, which maximized the improvement of antioxidant capacity, ascorbic acid content and TSS during days of storage (DS).”
t0“Washington navel orange fruits”
Claim · model-written summary
The authors propose seaweed extract for maintaining postharvest orange quality through antioxidant activity.
Verbatim
e0“seaweed extract could be used as a new bioactive agent for maintaining the postharvest quality of orange fruit through enhancing the antioxidant activity”
The same questions in other papers
botanical · quality: sugar starch · Citrus sinensis (sweet orange)Positive and negative results
10 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
8 papers more in this group
See all 12 papers →other · quality: phytochemicals · Citrus sinensis (sweet orange)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.