Levels (μg/g dw) of PCs quantified in cane and bunch stem by-products
Phenolic compound | Cane | Bunch stem |
---|---|---|
Hydroxybenzoic acids | ||
Gallic acid | 30 ± 1 | 33 ± 1 |
Syringic acid | n.d. | 154 ± 4 |
Total | 30 ± 1 | 187 ± 5 |
Hydroxycinnamic acids | ||
Caftaric acid | 253 ± 7 | 2,283 ± 65 |
Caffeic acid | 417 ± 8 | 331 ± 4 |
Total | 669 ± 15 | 2,614 ± 69 |
Stilbenes | ||
trans-piceid | 533 ± 11 | 284 ± 3 |
trans-piceatannol | 60 ± 2 | n.d. |
trans-resveratrol | 69 ± 1 | n.d. |
ε-viniferin | 1,041 ± 33 | 89 ± 1 |
Pteroestilbene | 161 ± 5 | 168 ± 4 |
Total | 1,864 ± 52 | 541 ± 8 |
Flavanols | ||
Procyanidin B1 | 72 ± 1 | 1,015 ± 32 |
(+)-catechin | 541 ± 9 | 2,421 ± 90 |
Procyanidin B2 | 53 ± 1 | 70 ± 2 |
(–)-epicatechin | 175 ± 6 | 49 ± 1 |
(–)-epigallocatechin gallate | 110 ± 1 | 248 ± 12 |
(–)-gallocatechin gallate | 88 ± 1 | 105 ± 1 |
Total | 1,040 ± 19 | 3,907 ± 138 |
Flavanones | ||
Astilbin | n.d. | 1,391 ± 22 |
Naringenin | 72 ± 3 | n.d. |
Total | 72 ± 3 | 11,391 ± 22 |
Flavonols | ||
Quercetin 3-β-D galactoside | 7 ± 0.2 | 30 ± 1 |
Quercetin 3-β-D-glucosidoe | n.d. | 11 ± 0.1 |
Kaempferol-3-glucoside | n.d. | 31 ± 1 |
Myricetin | n.d. | 93 ± 4 |
Total | 7 ± 0.2 | 164 ± 6 |
Other compounds | ||
OH-tyrosol | n.d. | 348 ± 8 |
Tyrosol | n.d. | 12 ± 0.6 |
total | n.d. | 360 ± 9 |
Total PC | 3,682 ± 90 | 9,163 ± 257 |
n.d.: not detected. PCs: phenolic compounds. Results are expressed as the mean ± standard deviation (SD) (n = 3 replicates)
The supplementary figures for this article are available at: https://www.explorationpub.com/uploads/Article/file/101049_sup_1.pdf.
The authors are also grateful to Roy Urvieta for providing the samples.
SF: Conceptualization, Methodology, Investigation, Formal analysis, Data curation, Writing—original draft, Writing—review & editing. ASL: Methodology, Formal analysis. CGL: Conceptualization, Methodology, Formal analysis, Investigation, Resources, Data curation, Supervision, Funding acquisition, Writing—review & editing. AC: Supervision, Writing—review & editing. AF: Conceptualization, Methodology, Formal analysis, Investigation, Resources, Data curation, Visualization, Supervision, Project administration, Funding acquisition, Writing—review & editing.
The authors declare that they do not have any conflict of interest.
Not applicable.
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Data can be shared on reasonable request.
This work was supported by ANPCyT [Grant number: BID PICT 2017-2325 and BID PICT 2020-1367] and SIIP-UNCuyo A016-T1 to AF. Additionally, we received the support from ANPCyT [PICT-2019-2019-03791] and SIIP-UNCuyo [06/J019-T1] to CGL. SF have a CONICET scholarship. ASL have an INC-Argentina scholarship. AC, CGL, and AF are fellows of CONICET. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
© The Author(s) 2024.