Chemical Composition and Concentration of Bioactive Compounds in Garlic Cultivated from Air Bulbils

Abstract

This study was designed to determine the chemical composition, antioxidant activity, and selected bioactive compound content and occurrence in whole immature and mature garlic plants grown from air bulbils. Two winter garlic cultivars, Harnaś and Ornak, of Polish origin, were cultivated from air bulbils at the Experimental Station of the Agricultural University in Kraków, Poland. Harvest bunching of garlic of both cultivars was carried out in May and in June. Mature plants were harvested in July. In whole plant proximate analysis, the concentration of vitamin C, total polyphenols, antioxidant activity, carotenoids, chlorophyll a and b, as well as glutathione level were determined. P-coumaric acid was found in Harnaś and Ornak samples collected in May. Sinapinic acid was identified in Ornak samples collected in June and July. Identification of sulphur compounds depended on the term of harvesting. Significantly higher content of total phenolic compounds, antioxidant activity, as well as other bioactive compounds, was measured in the Harnaś and Ornak cultivars harvested in May. A significantly lower level of bioactive compounds was determined in mature plants harvested in July. The organosulfur compound profile and polyphenolic profile depended on the time of harvesting. Immature garlic cultivated from air bulbils is recognized as a potential source of bioactive compounds in human nutrition, however, more research, in particular in vivo studies, is required to confirm its functional properties.

Evaluation of Productivity Components and Antioxidant Activity of Different Types of Garlic Depending on the Morphological Organs

“…The results of the present study regarding the vitamin C content are similar to those reported by Azzini et al (2014) [21] in Italian garlic varieties, but they are superior to those reported [22,23].…”

Identification of Phenolic Compounds and Determination of Antioxidant Activity in Extracts and Infusions of Salvia Leaves

“…Following the optimization of individual compounds, the parameters of ion path were obtained, which are presented in Table 1 . The following are included among the parameters: focusing potential (FP): 200 V; collision cell entrance potential (CEP): 0 V; decluttering potential (DP): 20 V; entrance potential (EP): 10 V; collision cell exit potential (CXP): 2 V [ 25 , 26 , 27 , 28 ]. To confirm the identification of studied compounds the comparison of precursor/production pair m / z values and LC retention times with standards was performed on investigated samples.…”

Antioxidant Properties and Structure-Antioxidant Activity Relationship of Allium Species Leaves

“…In the last 10 years, several studies have reported that Allium contains several secondary metabolites in the bulbs, flowers and leaves [ 6 , 10 , 11 , 12 , 13 ]. Secondary metabolites are rich in health benefits because they have several bioactivities such as antioxidant, anticancer, antibacterial, antifungal, anti-inflammatory and anti-platelet [ 5 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. Based on this, this review focused on the antioxidant activity found in the leaves of nine Allium species that have been extensively studied [ 27 ].…”