Abstract
Curcuma longa L. is highly regarded for its content of curcumin and essential oils, both of which hold considerable medicinal and commercial significance. Although the rhizome is the primary source of curcumin, the leaves also contain essential oils that can increase the overall economic value of the plant. The presence of essential oils in the leaves can add commercial value to the crop, as these oils can be used in the pharmaceutical, perfumery and cosmetic industries. The present study reports the effect of early harvesting of leaves, one month before full maturity of the crop, on the curcumin content and essential oil yield from younger leaves and mature post-harvest waste leaves. It was observed that essential oil content decreased in the matured-dried leaves as compared to that of the younger leaves collected at one month before rhizome harvest. The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I. Although in the variety IISR-Alleppy Supreme and Megha Turmeric-I, there was an observed decrease in EO yield in the matured-dried leaves as compared to younger leaves but the changes were not significant. The curcumin content was differentially affected by the time of leaf collection, which is also cultivar dependent. Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively. Essential oils from both stages of leaves were shown to have comparable reducing power and antioxidant properties. These findings suggest that early collection of leaves at one month before maturity of the rhizome increased the yield of the essential oil content with minimal effect on the curcumin.
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Claims 15
Claim · model-written summary
Mature dried leaves of Rajendra Sonia had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.
_W_IMG_2440.jpg?width=60)
Curcuma longat0 - Material
- Rajendra Soniae0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 62.59 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_W_IMG_2440.jpg?width=500)
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I.”
t0“Curcuma longa L.”
Claim · model-written summary
Mature dried leaves of Morangia had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Morangiae0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 74 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I.”
t0“Curcuma longa L.”
Claim · model-written summary
Mature dried leaves of IISR-Roma had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- IISR-Romae0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 19.75 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I.”
t0“Curcuma longa L.”
Claim · model-written summary
Mature dried leaves of IISR-Pratibha had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- IISR-Pratibhae0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 2 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I.”
t0“Curcuma longa L.”
Claim · model-written summary
Mature dried leaves of IISR-Alleppy Supreme had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- IISR-Alleppy Supremee0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 0.61 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I. Although in the variety IISR-Alleppy Supreme and Megha Turmeric-I, there was an observed decrease in EO yield in the matured-dried leaves as compared to younger leaves but the changes were not significant.”
t0“Curcuma longa L.”
Claim · model-written summary
Mature dried leaves of Megha Turmeric-I had lower essential oil yield than younger leaves.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Megha Turmeric-Ie0
- Organ / stage
- dried-mature leavese0
- Outcome
- essential oils yielde0
- Direction
- decreasede0
- Value
- 18.30 %e0
- Comparator
- younger leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The magnitude of decreased of essential oils yield in dried-mature leaves as compared to younger leaves was 62.59 % in Rajendra Sonia, 74 % in Morangia, 19.75 % in IISR-Roma, 2 % in IISR-Pratibha, 0.61 % in IISR-Alleppy Supreme and 18.30 % in Megha Turmeric-I. Although in the variety IISR-Alleppy Supreme and Megha Turmeric-I, there was an observed decrease in EO yield in the matured-dried leaves as compared to younger leaves but the changes were not significant.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection decreased curcumin content in Roma.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Romae0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- decreasede0
- Value
- 39.21 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection decreased curcumin content in Morangia.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Morangiae0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- decreasede0
- Value
- 9.2 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection decreased curcumin content in Rajendra Sonia.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Rajendra Soniae0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- decreasede0
- Value
- 8.0 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection increased curcumin content in IISR-Pratibha.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- IISR-Pratibhae0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- increasede0
- Value
- 7.33 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection increased curcumin content in IISR-Alleppy Supreme.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- IISR-Alleppy Supremee0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- increasede0
- Value
- 3.48 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Early leaf collection increased curcumin content in Megha Turmeric-1.
- Taxon
- Curcuma longa L.Curcuma longat0
- Material
- Megha Turmeric-1e0
- Treatment
- Collection of leaves at one-month before rhizome harveste0
- Outcome
- curcumin contente0
- Direction
- increasede0
- Value
- 6.45 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Collection of leaves at one-month before rhizome harvest, curcumin content was decreased in the variety Roma by 39.21 %, Morangia by 9.2 % and Rajendra Sonia by 8.0 %, while in other varieties like IISR-Pratibha, IISR-Alleppy Supreme and Megha Turmeric-1, the curcumin content increased by 7.33 %, 3.48 % and 6.45 %, respectively.”
t0“Curcuma longa L.”
Claim · model-written summary
Essential oils from both leaf stages had comparable reducing power.
- Taxon
- Curcuma longa L.Curcuma longat0
- Organ / stage
- both stages of leavese0
- Outcome
- reducing powere0
- Direction
- comparablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils from both stages of leaves were shown to have comparable reducing power and antioxidant properties”
t0“Curcuma longa L.”
Claim · model-written summary
Essential oils from both leaf stages had comparable antioxidant properties.
- Taxon
- Curcuma longa L.Curcuma longat0
- Organ / stage
- both stages of leavese0
- Outcome
- antioxidant propertiese0
- Direction
- comparablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oils from both stages of leaves were shown to have comparable reducing power and antioxidant properties”
t0“Curcuma longa L.”
Claim · model-written summary
The authors suggest collecting leaves one month before rhizome maturity to raise essential oil yield with minimal curcumin effect.
- Taxon
- Curcuma longa L.Curcuma longat0
- Outcome
- early collection of leaves at one month before maturity of the rhizomee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These findings suggest that early collection of leaves at one month before maturity of the rhizome increased the yield of the essential oil content with minimal effect on the curcumin”
t0“Curcuma longa L.”