Effect of grinding method on the analysis of essential oil from Baccharis articulata (Lam.) Pers.

Tischer, Bruna; Vendruscolo, Raquel Guidetti; Wagner, Róger; Menezes, Cristiano Ragagnin de; Barin, Cláudia Smaniotto; Giacomelli, Sandro Rogério; Budel, Jane Manfron; Barin, Juliano S.

doi:10.1007/s11696-016-0052-0

Cited by 23 publications

(18 citation statements)

References 20 publications

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“…Flagelliform and biseriate glandular trichomes have been frequently reported in Baccharis (Barreto et al, ; Bobek et al, ; Budel et al, ; Budel and Duarte, ; Budel et al, ; Freire et al, ; Jasinski et al, ; Pereira et al, ; Rodriguez et al, ; Souza et al, ; Tischer et al, ).…”

Section: Resultsmentioning

confidence: 99%

Foliar anatomy and microscopy of six Brazilian species of Baccharis (Asteraceae)

Budel¹,

Raman

Monteiro³

et al. 2018

Microscopy Res & Technique

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We report for the first time the presence of cluster crystals of calcium oxalate within the glandular trichomes and oil bodies in the mesophyll for Baccharis species. Moreover, the comparative leaf anatomy and micro-morphology of six species of Baccharis, namely B. illinita, B. microdonta, B. pauciflosculosa, B. punctulata, B. reticularioides, and B. sphenophylla is investigated by light and scanning electron microscopy. The studied species exhibited differences in their leaf anatomical features such as the morphology of the cuticle, type and occurrence of the stomata, presence or absence of glandular trichomes, shape of the flagelliform trichomes, and the arrangement of the mesophyll tissues. These differences can be helpful in the species identification and classification and could represent informative characters for the reconstruction of the evolution of the genus.

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Section: Resultsmentioning

confidence: 99%

Foliar anatomy and microscopy of six Brazilian species of Baccharis (Asteraceae)

Budel¹,

Raman

Monteiro³

et al. 2018

Microscopy Res & Technique

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“…However, it has been reported that ground biomass causes the volatilization of some compounds that are retained in raw biomass cells due to temperature variations [31]. Murthy et al [29] also confirmed that grinding leads to a reduction in the particle size and increases the surface area exposed to the atmosphere. Indeed, the volatilization of aromatic fractions and the modification of organoleptic characteristics are the result of particle size reduction [37].…”

Section: Effect Of Mechanical Pretreatments On Eos Yieldmentioning

confidence: 94%

“…These findings may indicate that the surface of residual forest biomass has larger quantities of EOs than the internal part. Tischer et al [29] reported that the type of mill, the shape of the biomass, and its moisture content are among the main factors that affect EOs extraction yield. Grinding of forest biomass is the method usually used to preserve the stability and the homogeneity of the material during EOs extraction.…”

Section: Effect Of Mechanical Pretreatments On Eos Yieldmentioning

confidence: 99%

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Effect of Forest Biomass Pretreatment on Essential Oil Yield and Properties

Hmaied

Bouafif

Magdouli

et al. 2019

Forests

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Essential oils (EOs) are natural and economically valuable aromatic compounds obtained from a variety of crops and trees, including forest trees, which have different therapeutic and biological activities. This project aims to assess the impact of different residual forest biomass pretreatments on the yield and the properties of EOs, including their antibacterial and antioxidant characteristics. Forest biomass from black spruce (BS, Picea mariana Mill.), balsam fir (BF, Abies balsamea), and jack pine (JP, Pinus banksiana Lamb.) was processed mechanically by (i) shredding, (ii) grinding, (iii) pelletizing, and (iv) bundling. EOs were then extracted by hydro- and steam distillation. The densification into bundles was found to improve EOs yield compared to the other residual forest biomass pretreatments. For example, the yield of bundled BF was improved by 68%, 83%, and 93% compared to shredded, ground, and granulated biomass, respectively. The highest yield was obtained when densification into bundles was combined with extraction through hydrodistillation. As for EOs’ chemical composition, JP had the highest polyphenol content and consequently the greatest antioxidant activity. EOs derived from BS inhibited the growth of Gram-positive Staphylococcus aureus bacteria and Gram-negative Salmonella typhimurium and Escherichia coli bacteria. The densification of forest biomass into bundles did not affect the antioxidant capacity or the antibacterial activity of EOs, thereby preserving both properties. Thus, the pretreatment of forest biomass residue could have an impact on the volume and the transport costs and therefore improve the bioproducts market and the bioeconomy in Canada.

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“…Samples of basil and lemongrass were ground in a knife mill at 5,400rpm for 3s and lemon peels at 13,500rpm for 5s in order to avoid the rupture of structures that retain essential oils in the plants (TISCHER et al, 2017). Anhydrous sodium sulfate P.A.…”

Section: Plants Chemicals Materials and Instrumentationmentioning

confidence: 99%

Oxygen introduction during extraction and the improvement of antioxidant activity of essential oils of basil, lemon and lemongrass

et al. 2017

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Essential oil extraction is commonly carried out by using the hydrodistillation method, which is described in official compendia of food quality control and medicinal plants. Despite the widespread use of this method, few studies have evaluated the effect of the atmosphere change during extraction on the composition and antioxidant activity of essentials oils. Therefore, a study of oxygen introduction influence during the extraction of essential oils from basil, lemongrass and lemon by hydrodistillation was performed. Total amount of oxygenated compounds (e.g., linalool, camphor, α-terpineol, neral, geranial, eugenol and α-muurolol) increased for all essential oils extracted under oxygen flow. Antioxidant activity evaluated by using the ORAC method significantly increased (P<0.0001) with oxygen from 618 to 906, 355 to 613 and 72 to 262µmol Trolox g-1 oil for basil, lemongrass and lemon, respectively. Therefore, the simple modification proposed could be considered a suitable alternative to obtain essential oils with higher antioxidant activity.

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Effect of grinding method on the analysis of essential oil from Baccharis articulata (Lam.) Pers.

Cited by 23 publications

References 20 publications

Foliar anatomy and microscopy of six Brazilian species of Baccharis (Asteraceae)

Foliar anatomy and microscopy of six Brazilian species of Baccharis (Asteraceae)

Effect of Forest Biomass Pretreatment on Essential Oil Yield and Properties

Oxygen introduction during extraction and the improvement of antioxidant activity of essential oils of basil, lemon and lemongrass

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