Potential effects of storage period, warehouse locations, and methyl jasmonate in long-term stored garlic bulbs

Abstract

IntroductionGarlic (Allium sativum L.) is one of the most popular vegetable species around the world. It has been widely used for nutrition and medicinal purposes since ancient times. Turkey provides 0.5% of total world garlic production contributing with 143 thousand tons of garlic. Out of this production, 0.32% is exported, 8% is used for vegetative production, and unfortunately 20%-30% is wasted during storage, marketing or handling and the rest is used for processing or freshly domestic consumption (TurkStat, 2019). Garlic is a crucial product for industry because of its wide functional uses and this species can be considered as an industrial product. Long-term storage of an industrial product is extremely important in terms of ensuring raw materials for processing industry, restaurants, and markets as well. In this concept, Turkey has over 200 companies processing garlic. These industrial companies demand raw materials with high quality from producers or suppliers throughout the year.Soluble solids, moisture and reducing sugar content, color, pH value and firmness of garlic bulbs are important quality criteria in terms of consumer preferences (Pardo et al., 2007). Additionally, several enzymes, amino acids, phenolic contents, antioxidant capacity, and many sulfur compounds, such as alliin, allicin, ajoene, diallyl sulfide, diallyl disulfide, diallyl trisulfide vinyldithiines, S-allyl cysteine, S-allylmercaptocystein, and others in garlic are considered as important markers because these compounds are related to many therapeutic effects of this species such as antithrombotic, antiaging, cardiovascular protection, and cancer prevention (Huang et al., 2015).The bulb quality of garlic is dramatically deteriorated due to unsuitable ambient conditions during long storage period (Volk and Rotindo, 2004). During the storage period, sprouting, rooting, weight loss, discoloration, offflavor and high microbial activity observed in garlic bulbs are taken into consideration as quality losses. Aforesaid disorders may be a result of some pre and postharvest factors, such as excessive nitrogen fertilization, more and/ or less irrigation, early harvest, insufficient curing of bulbs, or overload stacking of storage rooms (Petropoulos et al., 2017).

Allelopathic potential in rice - a biochemical tool for plant defence against weeds

“…Phenolic content demonstrated a strong positive relationship with the percent inhibition of barnyard grass root development ( Berendji et al., 2008 ). Another study discovered that the total phenolics content was impacted by methyl jasmonate (MeJA) treatments ( Akan and Tuna Gunes, 2021 ). The grain of the triticale cultivars under investigation included 13 phenolic acids, among which ferulic acid was found to be present in the highest concentration and made up 42-44% of the total phenolic acid content in the grain.…”