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Non-thermal plasma treatment of corn stalks examined by light microscopy
Tretman preseka stabljika kukuruza netermalnom plazmom ispitivan svetlosnom mikroskopijom
dc.creator | Đukić-Vuković, Aleksandra | |
dc.creator | Mladenović, Dragana | |
dc.creator | Grbić, Jovana | |
dc.creator | Lazović, Saša | |
dc.creator | Pejin, Jelena | |
dc.creator | Kocić-Tanackov, Sunčica | |
dc.creator | Mojović, Ljiljana | |
dc.date.accessioned | 2023-03-21T11:03:57Z | |
dc.date.available | 2023-03-21T11:03:57Z | |
dc.date.issued | 2021 | |
dc.identifier.isbn | 978-86-7520-531-9 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6228 | |
dc.description.abstract | Lignocellulosic substrates are abundant, and considered cheap sources of cellulose for biorefinery processes. However, their use is limited because of complex and interlinked structures of cellulose and lignin not easily accessible to enzymes for decomposition. Different chemical (acid, base, and enzymatic hydrolysis) and physical pretreatments (e.g. steam explosion, high pressure, non-thermal plasma) are used with limited success for degradation of lignin and better utilization of cellulose by microorganisms during fermentation. Poor selectivity, low efficiency, and environmental hazards are common problems in treatment of lignocellulose. Degradation of both cellulose and lignin, and formation of compounds which inhibit microorganisms in subsequent fermentation often occurs reducing the efficiency of bioprocessing. The use of a low-power atmospheric pressure plasma source (plasma needle) was investigated for treatment of corn stalks. Slices of corn stalks were subjected to non-thermal plasma treatment under different conditions. After the treatment, they are dyed and studied using light microscopy. AstraBlue® and safranin are used as dyes for staining of lignin in the absence and presence of cellulose, respectively. Plasma can degrade both cellulose and lignin but at different rates and treatment conditions can be tailored to achieve selectivity. This differential staining method is fast and simple. It enables us to examine how selective plasma treatments are and has a potential for screening of lignocellulose substrates | sr |
dc.description.abstract | Lignocelulozni supstrati su široko rasprostranjeni i predstavljaju jeftine izvore celuloze za biorafinerijske postupke. Pa ipak, njihova upotreba je ograničena zbog kompleksnog sastava i izprepletanosti celuloznih i ligninskih komponenata što ih čini teško dostupnim za enzimsku razgradnju. Različiti hemijski (kisela, bazna i enzimska hidroliza) i fizički pretretmani (npr. tretman vodenom parom, visokim pritiskom, netermalnom plazmom) se koriste sa ograničenim uspehom za degradaciju lignina i bolje iskorišćenje celuloze pomoću mikroorganizama u toku fermentacije. Loša selektivnost, niska efikasnost i rizici vezani za uticaj na životnu sredinu su česti problemi prilikom tretmana lignoceluloznih supstrata. U toku ovih tretmana, često dolazi do istovremene razgradnje i celuloze i lignina i stvaranja inhibitornih jedinjenja koja negativno utiču na mikroorganizame u toku fermentacije, utičući značajno na efikasnost celokupnog procesa. U radu je ispitivana upotreba plazma izvora niske snage na atmosferskom pritisku (plazma igle) za tretman stabljika kukuruza. Preseci stabljika kukuruza su bili izloženi netermalnoj plazmi pri različitim uslovima. Nakon tretmana, preseci su obojeni i posmatrani svetlosnim mikroskopom. AstraBlue® i safranin su korišćeni kao boje za bojenje lignina u odsustvu i prisustvu celuloze, redom. Pokazano je da plazma može da razgradi i lignin i celulozu, ali u različitoj meri i da uslovi tretmana mogu biti kontrolisani tako da utiču na selektivnost razgradnje. Ovaj metod diferencijalnog bojenja je brz i jednostavan. On omogućava da se ispita selektivnost tretmana plazmom i ima potencijal za primenu u brzom skriningu lignoceluloznih supstrata | sr |
dc.language.iso | sr | sr |
dc.language.iso | en | sr |
dc.publisher | Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | sr |
dc.rights | restrictedAccess | sr |
dc.source | 7th International conference Sustainable postharvest and food technologies - INOPTEP 2021 | sr |
dc.subject | non-thermal plasma | sr |
dc.subject | lignocellulose | sr |
dc.subject | light microscopy | sr |
dc.subject | staining | sr |
dc.subject | corn stalks | sr |
dc.subject | netermalna plazma | sr |
dc.subject | lignoceluloza | sr |
dc.subject | svetlosna mikroskopija | sr |
dc.subject | bojenje | sr |
dc.subject | stabljike kukuruza | sr |
dc.title | Non-thermal plasma treatment of corn stalks examined by light microscopy | sr |
dc.title | Tretman preseka stabljika kukuruza netermalnom plazmom ispitivan svetlosnom mikroskopijom | sr |
dc.type | conferenceObject | sr |
dc.rights.license | ARR | sr |
dc.citation.epage | 30 | |
dc.citation.spage | 29 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_technorep_6228 | |
dc.type.version | publishedVersion | sr |