Paper · 2025 · BMC Plant Biology

Effect of activated charcoal and subculture rates on a two-phase culture strategy involving biomass accumulation followed by phenolic production in date palm cell suspension cultures

Mansour A. Abohatem

13
claims
25
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

BACKGROUND: Date palm (Phoenix dactylifera) is an important medicinal plant rich in a wide range of phenolic compounds variety of high antioxidant values. To enhance the production of phenolic compounds in cell suspension cultures, this study examines the impact of activated charcoal (AC) and subculture rates on biomass accumulation and phenolic content. RESULTS: Indicate that culture medium with or without activated charcoal (AC) and subculture rates have a significant effect on the synthesis of phenolic compounds and the accumulation of biomass. The culture medium without AC showed a substantial increase in the synthesis of phenolic compounds without loss of biomass accumulation. Specifically, the intracellular phenolic content in somatic embryos increased more than threefold, while the extracellular phenolic content in the spent liquid medium rose more than fivefold. Additionally, when subcultured every three weeks, the intracellular phenolic content was fivefold higher and the extracellular phenolic content approximately sixfold higher than when subcultured once a week. The combination of subcultures with and without activated charcoal significantly enhanced the production of phenolic compounds and biomass accumulation. Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoal, resulted in increased biomass accumulation during the first four weeks and also significantly increased accumulation of intracellular phenolic content by sevenfold and extracellular phenolic content by ninefold in the last 3 weeks of the suspension cultures period. CONCLUSIONS: This study establishes a reliable protocol for the large-scale production of phenolic compounds from date palm, which serve as raw materials for various pharmaceutical and food industries.

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Claims 13

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Charcoal and subculture rate significantly affected synthesis of phenolic compounds.

Taxon
Date palmPhoenix dactyliferat0
Treatment
activated charcoal (AC) and subculture ratese0
Outcome
synthesis of phenolic compoundse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“culture medium with or without activated charcoal (AC) and subculture rates have a significant effect on the synthesis of phenolic compounds and the accumulation of biomass.”

✓ located verbatim in the source · abstract, characters 380–553 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Charcoal and subculture rate significantly affected accumulation of biomass.

Taxon
Date palmPhoenix dactyliferat0
Treatment
activated charcoal (AC) and subculture ratese0
Outcome
accumulation of biomasse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“culture medium with or without activated charcoal (AC) and subculture rates have a significant effect on the synthesis of phenolic compounds and the accumulation of biomass.”

✓ located verbatim in the source · abstract, characters 380–553 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Medium without charcoal increased phenolic synthesis.

Taxon
Date palmPhoenix dactyliferat0
Treatment
without ACe0
Outcome
synthesis of phenolic compoundse0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The culture medium without AC showed a substantial increase in the synthesis of phenolic compounds without loss of biomass accumulation.”

✓ located verbatim in the source · abstract, characters 554–690 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Medium without charcoal retained biomass accumulation.

Taxon
Date palmPhoenix dactyliferat0
Treatment
without ACe0
Outcome
biomass accumulatione0
Direction
without losse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The culture medium without AC showed a substantial increase in the synthesis of phenolic compounds without loss of biomass accumulation.”

✓ located verbatim in the source · abstract, characters 554–690 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intracellular phenolics in somatic embryos rose more than threefold.

Taxon
Date palmPhoenix dactyliferat0
Organ / stage
somatic embryose0
Outcome
intracellular phenolic contente0
Direction
increasede0
Value
more than threefolde0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the intracellular phenolic content in somatic embryos increased more than threefold, while the extracellular phenolic content in the spent liquid medium rose more than fivefold.”

✓ located verbatim in the source · abstract, characters 705–882 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Extracellular phenolics in spent medium rose more than fivefold.

Taxon
Date palmPhoenix dactyliferat0
Outcome
extracellular phenolic contente0
Direction
rosee0
Value
more than fivefolde0

Not reportedTreatmentComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the intracellular phenolic content in somatic embryos increased more than threefold, while the extracellular phenolic content in the spent liquid medium rose more than fivefold.”

✓ located verbatim in the source · abstract, characters 705–882 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three-week subculture gave fivefold higher intracellular phenolics than weekly subculture.

Taxon
Date palmPhoenix dactyliferat0
Treatment
subcultured every three weekse0
Outcome
intracellular phenolic contente0
Direction
highere0
Value
fivefolde0
Comparator
subcultured once a weeke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“when subcultured every three weeks, the intracellular phenolic content was fivefold higher and the extracellular phenolic content approximately sixfold higher than when subcultured once a week.”

✓ located verbatim in the source · abstract, characters 897–1090 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three-week subculture gave approximately sixfold higher extracellular phenolics than weekly subculture.

Taxon
Date palmPhoenix dactyliferat0
Treatment
subcultured every three weekse0
Outcome
extracellular phenolic contente0
Direction
highere0
Value
approximately sixfolde0
Comparator
subcultured once a weeke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“when subcultured every three weeks, the intracellular phenolic content was fivefold higher and the extracellular phenolic content approximately sixfold higher than when subcultured once a week.”

✓ located verbatim in the source · abstract, characters 897–1090 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combining subcultures with and without charcoal enhanced phenolic production and biomass.

Taxon
Date palmPhoenix dactyliferat0
Treatment
combination of subcultures with and without activated charcoale0
Outcome
production of phenolic compounds and biomass accumulatione0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The combination of subcultures with and without activated charcoal significantly enhanced the production of phenolic compounds and biomass accumulation.”

✓ located verbatim in the source · abstract, characters 1091–1243 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The staged charcoal protocol increased biomass accumulation.

Taxon
Date palmPhoenix dactyliferat0
Treatment
Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoale0
Outcome
biomass accumulatione0
Direction
increasede0
Qualifier
during the first four weekse0

Not reportedComparatorValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoal, resulted in increased biomass accumulation during the first four weeks and also significantly increased accumulation of intracellular phenolic content by sevenfold and extracellular phenolic content by ninefold in the last 3 weeks of the suspension cultures period.”

✓ located verbatim in the source · abstract, characters 1244–1654 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The staged charcoal protocol increased intracellular phenolic content by sevenfold.

Taxon
Date palmPhoenix dactyliferat0
Treatment
Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoale0
Outcome
intracellular phenolic contente0
Direction
increasede0
Value
sevenfolde0
Qualifier
last 3 weekse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoal, resulted in increased biomass accumulation during the first four weeks and also significantly increased accumulation of intracellular phenolic content by sevenfold and extracellular phenolic content by ninefold in the last 3 weeks of the suspension cultures period.”

✓ located verbatim in the source · abstract, characters 1244–1654 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The staged charcoal protocol increased extracellular phenolic content by ninefold.

Taxon
Date palmPhoenix dactyliferat0
Treatment
Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoale0
Outcome
extracellular phenolic contente0
Direction
increasede0
Value
ninefolde0
Qualifier
last 3 weekse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Subculturing every week with charcoal for three weeks, followed by two weeks without charcoal, and then three additional weeks without charcoal, resulted in increased biomass accumulation during the first four weeks and also significantly increased accumulation of intracellular phenolic content by sevenfold and extracellular phenolic content by ninefold in the last 3 weeks of the suspension cultures period.”

✓ located verbatim in the source · abstract, characters 1244–1654 · show in text ↑
t0

“date palm cell suspension cultures”

✓ located verbatim in the source · title, characters 148–182 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors present a protocol for large-scale phenolic production from date palm.

Taxon
date palmPhoenix dactyliferae0
Outcome
large-scale production of phenolic compoundse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“This study establishes a reliable protocol for the large-scale production of phenolic compounds from date palm”

✓ located verbatim in the source · abstract, characters 1668–1778 · show in text ↑

charcoal · growth · Phoenix dactylifera (date palm)Results differ

16 papers: 15 positive, 1 negative or no effect

14 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

in vitro · growth · Phoenix dactylifera (date palm)Positive and negative results

51 papers: 50 positive, 1 negative or no effect

49 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

47 papers more in this group

See all 51 papers →

in vitro · quality: phytochemicals · Phoenix dactylifera (date palm)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.