Asayansi apanga zokutira zatsopano zopanda poizoni, zowola komanso zowononga tizilombo toyambitsa matenda zomwe zimatha kuchepetsa kuwononga zakudya komanso matenda obwera ndi chakudya popanda kuwonjezera pulasitiki ku chilengedwe. Kafukufuku watsopano akuwonetsa kuti nkhaniyi imatha kupopera bwino masamba. Asanadye iwo zikuchokera mosavuta kutsukidwa ndi madzi. Zotsatira za kafukufuku zinasindikizidwa June 20, 2022 pa Zakudya Zachilengedwe.
Pulasitiki ikhoza kukhala m'chilengedwe kwa nthawi yayitali, koma zokutira zatsopanozi zimatha kuwonongeka. Zimakhazikitsidwa ndi pullulan, polysaccharide polima yochokera ku wowuma. Kupakako kumaphatikizaponso zinthu zachilengedwe zowononga tizilombo toyambitsa matenda (citric acid ndi mafuta a thyme) komanso nisin preservative, zonse zomwe zimaonedwa kuti ndizotetezeka kwa anthu (zikadyedwa pamlingo wokwanira).
Pofuna kupanga zokutira, asayansi anagwiritsa ntchito njira yotchedwa focused rotary jet spinning, kapena FRJS. Dongosolo la FRJS lingayerekezedwe ndi makina a maswiti a thonje omwe amazungulira mwachangu shuga wosungunuka kudzera m'mabowo ang'onoang'ono kuti apange ulusi wopyapyala womwe ungathe kukulunga pa chulu cha pepala. FRJS imapanganso ulusi wambiri wa kangaude (panthawiyi wopangidwa kuchokera ku pullulan, osati shuga wokometsera) womwe ungathe kukulunga chakudya.
Gululo linayesanso momwe zokutirazo zidathandizira kuti chakudya chitetezeke. Ofufuzawo atayesa mayeso ofunikira, adawona kuchepa kwa mabakiteriya ndi mafangasi pamtunda wazinthuzo. Asayansi adapezanso kuti ma avocado okutidwa amakhala osawola, ndipo 50% yokha ya zipatsozo zidawonongeka mkati mwa sabata kuyerekeza ndi 90% ya ma avocado osakutidwa. Mapeyala okutidwa amatha kukhalabe ndi mtundu wobiriwira wamkati.
Ngakhale uku sikuli koyambira koyamba kwa antimicrobial pazakudya, ofufuzawo akukhulupirira kuti apanga njira yothandiza kwambiri komanso yosavuta yobwezeretsanso mpaka pano. Amati ukadaulo wopopera umafuna zoyambira zochepa, zomwe zimapangitsa kuti zikhale zogwira mtima kwambiri kuposa zokutira za silika, zomwe zimafuna kuti zinthu zilowedwe kaye muzinthuzo kenako zowumitsidwa. Kuyesera kwina pakupanga zakudya zopanda pulasitiki kwaphatikizanso mafilimu opangidwa ndi cellulose; sizingachapitsidwe, ndipo zina zimafunika kuzikonzanso.
Gululi pakali pano likugwira ntchito yokonza zokutira kuti lizitha kusamalira zinthu zingapo nthawi imodzi. Asayansi akuganizira njira zingapo, kuphatikizapo njira yopangira mapaipi, koma izi zikadali kumayambiriro kwa kukonzekera.