Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (Beta vulgaris L.) Leaves

Ebrahimi, Pouneh; Mihaylova, Dasha; Marangon, Christine Mayr; Grigoletto, Luca; Lante, Anna

doi:10.3390/molecules27228110

Cited by 15 publications

(4 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A specific resin was used to recover the chlorophylls, guaranteeing their high degree of purity, as confirmed by Vaz et al 38 Moreover, the biomass studied has a low protein content and is poor in lipids. [42][43][44] Since aqueous solutions were used for the extraction, the probability of extracting lipids is indeed low.…”

Section: Pigment Separation and Recoverymentioning

confidence: 99%

Valorisation of red beet waste: one-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systems

et al. 2023

View full text Add to dashboard Cite

show abstract

Section: Pigment Separation and Recoverymentioning

confidence: 99%

Valorisation of red beet waste: one-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systems

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The dry matter (DM) content was obtained by drying triplicate samples for 48 h at 100 • C in an oven. The amino acid and fatty acid profiles were determined as previously reported [33,34].…”

Section: Chemical Analyses Of Cph and Cbsmentioning

confidence: 99%

Exploitation of Cocoa Pod Residues for the Production of Antioxidants, Polyhydroxyalkanoates, and Ethanol

Ramos,

Cisneros-Yupanqui,

Santisteban Soto

et al. 2023

Fermentation

Self Cite

View full text Add to dashboard Cite

Cocoa pod husks (CPH) and cocoa bean shells (CBS) are the main by-products of the cocoa industry and a source of bioactive compounds. These residues are not completely used and thrown in the fields without any treatment, causing environmental problems. Looking for a holistic valorization, the aim of this work was first to deeply characterize CPH and CBS in their chemical composition, amino acid, and fatty acid profiles, as well as their application as antioxidants. CBS had a high level of protein (17.98% DM) and lipids (16.24% DM) compared with CPH (4.79 and 0.35% DM respectively). Glutamic acid and aspartic acid were the predominant amino acids. The total phenolic compounds (TPC) detected in the ethanolic extracts of CPH and CBS were similar to pyrogallol as the main detected polyphenol (72.57 mg/L). CBS ethanolic extract showed a higher antioxidant activity than CPH. Both extracts increased the oxidation stability of soybean oil by 48% (CPH) and 32% (CBS). In addition, alkaline pretreatment of CPH was found suitable for the release of 15.52 ± 0.78 g glucose/L after subsequent saccharification with the commercial enzyme Cellic®. CTec2. Alkaline hydrolyzed and saccharified CPH (Ahs-CPH) was assessed for the first time to obtain polyhydroxy alkanoate (PHAs) and bioethanol. Ahs-CPH allowed the growth of both Cupriavidus necator DSM 545 and Saccharomyces cerevisiae Fm17, well-known as PHA- and bioethanol-producing microbes, respectively. The obtained results suggest that such agricultural wastes have interesting characteristics with new potential industrial uses that could be a better alternative for the utilization of biomass generated as million tons of waste annually.

show abstract

“…Furthermore, grafting could enhance the apparent quality of fruits and health-related components [17,18]. Another factor affecting enzymatic browning is the type and content of phenolic compounds [23][24][25]. Phenolic compounds are considered to be a substrate for the activity of PPO [9].…”

Section: Ppo Activitymentioning

confidence: 99%

Impact of Agronomic Treatments on the Enzymatic Browning of Eggplants (Solanum melongena L.)

et al. 2023

Self Cite

View full text Add to dashboard Cite

Enzymatic browning could negatively affect the sensory and nutritional properties of eggplants post-harvest. Polyphenols, polyphenol oxidase (PPO), and reactive oxygen species (ROS) are three material conditions involved in enzymatic browning. This paper seeks to evaluate the effect of fertilization techniques and grafting on the activity of PPO and colorimetric parameters in cultivated eggplants. Fertilization alone significantly increased the PPO activity in all eggplant fleshes (p ≤ 0.05), whereas the grafting technique combined with fertilization decreased the PPO activity in most of the samples significantly (p ≤ 0.05). Moreover, there was a significant positive correlation between the PPO activity and the a* values of the eggplants. The a* values in grafted eggplants were significantly different from each other (p ≤ 0.05), showing that grafting the fertilized eggplants could be effective in controlling the enzymatic browning. The eggplant slices exposed to air for 60 min at room temperature showed a significant increase (p ≤ 0.05) in PPO activity, browning index (BI), total color difference (ΔE), and a*, b*, and c* values. Thus, it is necessary to minimize the exposure time of the slices to air at room temperature, even if combining fertilization techniques with grafting could delay the enzymatic browning in fresh-cut eggplants.

show abstract

Impact of Sample Pretreatment and Extraction Methods on the Bioactive Compounds of Sugar Beet (Beta vulgaris L.) Leaves

Cited by 15 publications

References 80 publications

Valorisation of red beet waste: one-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systems

Valorisation of red beet waste: one-step extraction and separation of betalains and chlorophylls using thermoreversible aqueous biphasic systems

Exploitation of Cocoa Pod Residues for the Production of Antioxidants, Polyhydroxyalkanoates, and Ethanol

Impact of Agronomic Treatments on the Enzymatic Browning of Eggplants (Solanum melongena L.)

Contact Info

Product

Resources

About