Volatile profile differences between spontaneous and cultivated Hyblean pasture

Rapisarda, Teresa; Pasta, Catia; Carpino, S.; Caccamo, M.; Ottaviano, Maria; Licitra, G.

doi:10.1016/j.anifeedsci.2014.02.003

Cited by 8 publications

(15 citation statements)

References 24 publications

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“…Differences in the number of odour-active terpenes detected in individual plant species of semiarid pastures of Algeria (Rapisarda et al, 2014). Thirty chemical compounds, over 30% of the total identified compounds were identical with the compounds perceived by Rapisarda et al (2014) in spontaneous Sicilian pasture samples, including 6 alcohols, 6 aldehydes, 5 terpenes, 3 esters, 3 sulphur compounds and 1 aromatic hydrocarbon, 1 ketone, 1 pyrazine and 1 pyrrole.…”

Section: Ta B L Ementioning

confidence: 93%

“…Alcohols were detected in the sampled plants with a total of 10 different compounds (Table 3): 1-Hexanol was predominantly detected in most samples, whereas 1-Octen-3-ol was a common compound. This alcohol was also detected as common compound in cultivated and spontaneous pastures (Rapisarda et al, 2014). Aldehydes totalled 18 OACs ( Rapisarda et al (2012) in order to determine their palatability.…”

Section: Ta B L Ementioning

confidence: 98%

“…The 10 selected individual plant samples were extracted with ethyl ether (Sigma Chemical Co., St. Louis, MO) using the steam distillation extraction (SDE) technique and analysed with a qualitative detection technique, using Gas Chromatography Olfactometry analysis (GC/O), as described by Rapisarda et al (2013Rapisarda et al ( , 2014. This technique was already selected to determine the aroma profile in Sicilian pastures and individual pasture species as reported by Rapisarda et al (2013).…”

Section: Extraction and Detection Of Odouractive Compoundsmentioning

confidence: 99%

“…Ethyloctanoate, ethylmethylbutyrate and isobutylacetate were detected more often compared to the other esters. Rapisarda et al (2014) mentioned the presence of these ethyl esters in spontaneous and cultivated Sicilian pastures. Ethyloctanoate was identified with appreciable level in traditional Lben and Bouhezza cheese made from milk of goats fed on pastures within the area of Bouhezza cheese production (Medjoudj et al, 2016).…”

Section: Ta B L Ementioning

confidence: 99%

“…According to Curioni and Bosset (2002), the different types of ethyl esters detected in pasture-derived cheese are known for their important role in the formation of a fruity character in the cheese. Rapisarda et al (2014) reported that fruity, green, broth, and floral notes identified and smelled principally in spontaneous pasture are linked to the presence of esters.…”

Section: Ta B L Ementioning

confidence: 99%

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Botanical composition and aroma compounds of semi‐arid pastures in Algeria

Senoussi

Schadt

Chenchouni

et al. 2020

Grass and Forage Science

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This study aims to determine the botanical composition of different pastures in a semiarid region of Algeria and investigate the aromatic profile of the characteristic plant species grazed by goats and sheep. At three pastures (1: montane area with spontaneous vegetation 'never cultivated before', 2: previously cultivated but set at rest, 3: cultivated, under cereal production), plants were sampled twice during April-May to determine plant composition. Based on dominance of fresh aerial biomass of each plant per pasture and consumption by dairy goats, 10 species (Atractylis humilis, Calendula arvensis, Filago pygmaea, Globularia alypum, Hordeum vulgare, Malva sylvestris, Plantago sp., Scolymus hispanicus, Sonchus asper and Thymus algeriensis) were selected and sampled once at flowering stage to characterize their aromatic profile. The odour-active compounds (OACs) of the selected species were extracted using steam distillation, then detected and identified using gas chromatography/mass spectrometry/olfactometry (GC/MS/O). The analysis of botanical composition revealed the presence of 70 species (29 in mountain, 40 in set at rest, 11 in cultivated pasture) belonging to 62 genera and 22 families, with dominance of Asteraceae species. A total of 86 different OACs were identified, including mainly terpenes (21) and aldehydes (18). Among the OACs, 19 different compounds have various odour notes including herbaceous, floral, sweet spicy, fried, mint, cooked, fruity, sulphur, sweet and unpleasant notes. The number of OACs and individual chemical classes differed significantly between selected species. Atractylis humilis contained more OACs than Scolymus hispanicus and Plantago sp., whereas Globularia alypum had higher number of OACs compared to Plantago sp. This study gave a general overview on plant aroma profile of semiarid pastures in Algeria and suggests that the aromatic profile of grazed plants in the pasture is determinant of the aromatic quality of dairy-derived foods which depends also on animal feed selection. | 283 SENOUSSI Et al. | INTRODUC TI ONCovering an area of nearly 2.4 million km 2 , Algeria is the largest country in Africa. Most of its lands are considered as drylands falling mostly under Saharan or semi-arid and arid climates, whereas only about 2% of the country area receive annual precipitations higher than 800 mm (Negm et al., 2020). These conditions are highly limiting crop yields and conditioning animal production that is mainly practiced in semiarid steppe rangelands (Fenni, 2013;Iñiguez, 2011). Eighty % of the Algerian area consists of barren lands, whereas 16.5%, c. 0.39 M km 2 , are agricultural lands of which 0.31 M km 2 are used for grazing and only 0.08 M km 2 for primarily crops and some forage production (Nedjraoui, 2001). Livestock comprises mainly sheep farming as cow breeding is more difficult and limited. According to FAOSTAT (2018), 79% of livestock are sheep, 14% goats and only 6% are cows. Although more intensive husbandry systems have been introduced in recent years, traditiona...

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Section: Ta B L Ementioning

confidence: 93%

Section: Ta B L Ementioning

confidence: 98%