Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1858
Т Г Хасанов
Метод обратной задачи рассеяния применяется для интегрирования нагруженного уравнения Кортевега-де Фриза с источником в случае движущихся собственных значений. Выводится эволюция данных рассеяния оператора Штурма-Лиувилля, коэффициент которого является решением нагруженного уравнения Кортевега-де Фриза с источником в случае движущихся собственных значений. Кроме того предлагается алгоритм построении точных решений нагруженного уравнения Кортевега-де Фриза. Приведены примеры, иллюстрирующий изложенный алгоритм.
反转散射方法用于将cortevega - de friza加载方程与源集成，以备移动值。图尔马-利乌维尔运营商散射数据的演化，其系数是一种由corteveg - de freese方程提供的解，如果它自己的值移动的话。它还提供了一种算法来构建一个由cortevega - de friza方程组成的精确解。这里有一些例子说明了这个算法。
{"title":"Интегрирование нагруженного уравнения Кортевега-де Фриза с источником в случае движущихся собственных значений в классе быстроубывающих функций","authors":"Т Г Хасанов","doi":"10.59251/2181-1296.2023.v1.1.1858","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1858","url":null,"abstract":"Метод обратной задачи рассеяния применяется для интегрирования нагруженного уравнения Кортевега-де Фриза с источником в случае движущихся собственных значений. Выводится эволюция данных рассеяния оператора Штурма-Лиувилля, коэффициент которого является решением нагруженного уравнения Кортевега-де Фриза с источником в случае движущихся собственных значений. Кроме того предлагается алгоритм построении точных решений нагруженного уравнения Кортевега-де Фриза. Приведены примеры, иллюстрирующий изложенный алгоритм.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1900
H Q u r b o n o v, O ' B o z o r o v a
Ishda kutish joylari chegaralangan imtiyozli xizmat ko‘rsatish tarmog‘i nostatsionar navbat uzunligi taqsimotining Laplas almashtirishi topilgan. Ushbu ifodadan statsionar navbat uzunligi taqsimotini aniqlovchi formula keltirib chiqarilgan.
Ishda kutish joylari chegaralangan imtiyozli xizmat ko'rsatish tarmog'i nostatsionar navbat uzunligi taqsimotining Laplas almashtirishi topilgan.Ushbu ifodadan statsionar navbat uzunligi taqsimotini aniqlovchi formula keltirib chiqarilgan.
{"title":"Qayta tiklanish jarayonining kutish joylari soni cheklangan xizmat ko‘rsatish sistemalari statsionar navbat uzunliklari taqsimotini o‘rganishga tadbiqi","authors":"H Q u r b o n o v, O ' B o z o r o v a","doi":"10.59251/2181-1296.2023.v1.1.1900","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1900","url":null,"abstract":"Ishda kutish joylari chegaralangan imtiyozli xizmat ko‘rsatish tarmog‘i nostatsionar navbat uzunligi taqsimotining Laplas almashtirishi topilgan. Ushbu ifodadan statsionar navbat uzunligi taqsimotini aniqlovchi formula keltirib chiqarilgan.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"516 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1921
B I Turaeva, G J Kutlieva, N Y Zuhritdinova, X F Kamolova, А M a x k a m o v
Hozirgi kunda Oʼzbekistonning eksport salohiyatini oshirish, aholini ekologik toza maxsulotlarga boʼlgan talabini qondirish dolzarb masalalardan biridir. Ekologik toza mahsulot yetishtirishni rivojlantirish istiqbollarini oʼrganish shuni koʼrsatdiki, uzumchilikka ixtisoslashgan fermer xoʼjaliklarida ekinlarni jahon bozori konʼyunkturasi talablaridan kelib chiqib, mahsulotlarning raqobatbardoshligi, eksportga chiqarish imkoniyatlarining pasayishi va mahsulot yetishtirish hajmining kamayishi, intensiv texnologiyalarni ishlab chiqishga yetarlicha eʼtibor berilmasligi oqibatida paydo boʼlmoqda.
{"title":"TOKDАN АJRАTIB OLINGАN BАKTERIYALАRNING UZUM FITOPАTOGEN MIKROMITSETLАRIGА NISBАTАN АNTIFUNGАL XUSUSIYАTLАRI","authors":"B I Turaeva, G J Kutlieva, N Y Zuhritdinova, X F Kamolova, А M a x k a m o v","doi":"10.59251/2181-1296.2023.v1.1.1921","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1921","url":null,"abstract":"Hozirgi kunda Oʼzbekistonning eksport salohiyatini oshirish, aholini ekologik toza maxsulotlarga boʼlgan talabini qondirish dolzarb masalalardan biridir. Ekologik toza mahsulot yetishtirishni rivojlantirish istiqbollarini oʼrganish shuni koʼrsatdiki, uzumchilikka ixtisoslashgan fermer xoʼjaliklarida ekinlarni jahon bozori konʼyunkturasi talablaridan kelib chiqib, mahsulotlarning raqobatbardoshligi, eksportga chiqarish imkoniyatlarining pasayishi va mahsulot yetishtirish hajmining kamayishi, intensiv texnologiyalarni ishlab chiqishga yetarlicha eʼtibor berilmasligi oqibatida paydo boʼlmoqda.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.2026
A S Djuraev, A E Obidov
Mazkur maqolada Pedagogik kadrlar malakasini oshirish uchun moslashuvchan elektron taʼlim tizimini modellashtirish tavsifi berilgan. Аxborot-kommunikatsiya texnologiyalarining faol rivojlanishi jahon taʼlim tizimiga katta taʼsir koʼrsatmoqda. Аnʼanaviy taʼlim texnologiyalari faol rivojlanayotgan elektron taʼlim bilan almashtirilmoqda.
Mazkur maqolada Pedagogik kadrlar malakasini oshirish uchun moslashuvchan elektron taʼlim tizimini modellashtirish tavsifi berilgan.Аxborot-communikatsiya texnologiyalarining faol rivojlanishi jahon taʼlim tizimiga katta taʼsir koʼrsatmoqda.Аnʼanaviy taʼlim texnologiyalari faol rivojlanayotgan elektron taʼlim bilan almashtirilmoqda.
{"title":"PEDAGOGIK KADRLAR MALAKASINI OSHIRISH UCHUN MOSLASHUVCHAN ELEKTRON TAʼLIM TIZIMINI MODELLASHTIRISH","authors":"A S Djuraev, A E Obidov","doi":"10.59251/2181-1296.2023.v1.1.2026","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.2026","url":null,"abstract":"Mazkur maqolada Pedagogik kadrlar malakasini oshirish uchun moslashuvchan elektron taʼlim tizimini modellashtirish tavsifi berilgan. Аxborot-kommunikatsiya texnologiyalarining faol rivojlanishi jahon taʼlim tizimiga katta taʼsir koʼrsatmoqda. Аnʼanaviy taʼlim texnologiyalari faol rivojlanayotgan elektron taʼlim bilan almashtirilmoqda.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1881
T u r s u n o v F i r d a v s i, D o n g Q i u
Maqolada SiO2 makrosferik zarrachalarini xona haroratida zol-gel texnologiyasi yordamida sintez qilingani keltirilgan. Sintez qilinga zarrachalarning tuzilish morfologiyasi va xarakteristikalari skanerlovchi electron mikroskopda aniqlandi. Zaraachalarning hosil bo’lish mexanizmi o’rganildi.
二氧化硅宏观球状结构与沸胶凝胶电镜技术相结合。在电子显微镜下，可以观察到各种不同形态的球状物。Zaraachalarning hosil bo'lish mexanizmi o'rganildi.
{"title":"ZOL-GEL USULIDA SiO2 MIKROSFERIK ZARRACHALARNING SINTEZI","authors":"T u r s u n o v F i r d a v s i, D o n g Q i u","doi":"10.59251/2181-1296.2023.v1.1.1881","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1881","url":null,"abstract":"Maqolada SiO2 makrosferik zarrachalarini xona haroratida zol-gel texnologiyasi yordamida sintez qilingani keltirilgan. Sintez qilinga zarrachalarning tuzilish morfologiyasi va xarakteristikalari skanerlovchi electron mikroskopda aniqlandi. Zaraachalarning hosil bo’lish mexanizmi o’rganildi.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1878
Р а х м а т у л л а е в И А, Б о т и р о в Х З, К у р б о н о в А К, Х а й д а р о в Х С, А х м е д о в а Ш Ш, А б д и р а х м а т о в а М П
В статье обсуждается оригинальный способ регистрации слабых оптических сигналов с помощью резонаторных кювет и импульсно-периодических лазерных источников. Данная методика основана на волоконно-оптической регистрации спектров фотолюминесценции, комбинационного рассеяния и двухфотонно-возбуждаемой люминесценции с использованием малогабаритного спектрометра, резонаторных кювет и системы обработки данных, позволяющей провести сравнение анализируемого спектра со спектром эталонного вещества. Разработанный способ регистрации слабых оптических сигналов открывает широкие возможности для регистрации слабых сигналов вторичного излучения важных неорганических и органических веществ, а также для создания малогабаритных лазерных анализаторов химических соединений, необходимых для решения многих практических задач.
{"title":"СПОСОБ РЕГИСТРАЦИИ СЛАБЫХ ОПТИЧЕСКИХ СИГНАЛОВ С ПОМОЩЬЮ РЕЗОНАТОРНЫХ КЮВЕТ И ИМПУЛЬСНО-ПЕРИОДИЧЕСКИХ ЛАЗЕРНЫХ ИСТОЧНИКОВ","authors":"Р а х м а т у л л а е в И А, Б о т и р о в Х З, К у р б о н о в А К, Х а й д а р о в Х С, А х м е д о в а Ш Ш, А б д и р а х м а т о в а М П","doi":"10.59251/2181-1296.2023.v1.1.1878","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1878","url":null,"abstract":"В статье обсуждается оригинальный способ регистрации слабых оптических сигналов с помощью резонаторных кювет и импульсно-периодических лазерных источников. Данная методика основана на волоконно-оптической регистрации спектров фотолюминесценции, комбинационного рассеяния и двухфотонно-возбуждаемой люминесценции с использованием малогабаритного спектрометра, резонаторных кювет и системы обработки данных, позволяющей провести сравнение анализируемого спектра со спектром эталонного вещества. Разработанный способ регистрации слабых оптических сигналов открывает широкие возможности для регистрации слабых сигналов вторичного излучения важных неорганических и органических веществ, а также для создания малогабаритных лазерных анализаторов химических соединений, необходимых для решения многих практических задач.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MEZOG’OVAKLI UGLEROD SINTEZINING MAQBUL SHAROITINI TANLASH","authors":"N G Tursunova, N H Musulmanov, N I Fayzullaev","doi":"10.59251/2181-1296.2023.v1.1.1891","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1891","url":null,"abstract":"Ishda propan-butan fraksiyasidan mezog’ovakli uglerod olish jarayonining kinetik qonuniyatlari yarim – sanoat (pilot) reaktori sharoitida o’rganilgan. Mezog’ovakli uglerod olishning tajriba tadqiqotlarini o’tkazishda 15%Ni*5%Co*5%Fe* 5%Cu*2%Mo/YuKS katalizatordan foydalanilgan. Kataliza-tor kukuni metallar nitratlarini termik parchalash yo’li bilan olingan. Tajribalar 620±15℃ va gazning 12 daq davomida 9±0,8 l/soat sarfida o’tkazilgan. Haroratning Kmezog’ovakli uglerod ga ta’siri 550÷7000C harratlar oralig’ida 10℃ qadam bilan tadqiq qilinib, katalizator qavati qalinligi hk≈0,2 mm ni (m=12 mg), uglerod saqlaydigan gaz sarfi 9±0, l/soat ni, jarayonni o’tkazish vaqti 12daq ni tashkil qiladi. Ishda Kmezog’ovakli uglerod solishtirma unumining piroliz vaqtiga (τ) bog’liqligi, mezog’ovakli uglerod (Kmezog’ovakli uglerod) solishtirma unumi va reaktor unumdorligining (Q) katalizator qatlami qalinligiga (hk) bog’liqligi, mezog’ovakli uglerod (Kmezog’ovakli uglerod) solishtirma unumining haroratga (T) bog’liqliligi, mezog’ovakli uglerodning solishtirma unumining piroliz vaqtiga (τ) bog’liqliklari o’rganilgan. Skanirlovchi elektron mikroskopiya, adsorbsion (BET) usullarda katalizatorning o’lchamlari aniqlandi. Mezog’ovak uglerod sintezining maqbul sharoitlari tanlangan.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1904
I A Xudoyberdiyeva
Maqolada Navoiy viloyatidagi chorvachilik tarmoqni hududiy tashkil etishning iqtisodiy-geografik jihatidan tahlil qilingan. Shuningdek barcha turdagi chorva sonini statistik ma’lumotlar asosida 2000-2022 yillar oralig’ida o‘sishi va ularning mahsuldorligi hududlar kesimida tahlili keltirilgan. Ushbu tarmoqni viloyatda rivojlantirish uchun taklif va tavsiyalar keltirilgan.
纳沃伊地区的人口统计资料显示，2000-2022 年期间，该地区的人口数量和人口结构发生了翻天覆地的变化。从 2000 年到 2022 年的统计数字可以看出，人口的增长速度是惊人的。Ushbu tarmoqni viloyatda rivojlantirish uchun taklif va tavsiyalar keltirilgan.
{"title":"NAVOIY VILOYATIDA CHORVACHILIK TARMOQLARINI HUDUDIY TASHKIL ETISHNING IQTISODIY-GEOGRAFIK JIHATLARI","authors":"I A Xudoyberdiyeva","doi":"10.59251/2181-1296.2023.v1.1.1904","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1904","url":null,"abstract":"Maqolada Navoiy viloyatidagi chorvachilik tarmoqni hududiy tashkil etishning iqtisodiy-geografik jihatidan tahlil qilingan. Shuningdek barcha turdagi chorva sonini statistik ma’lumotlar asosida 2000-2022 yillar oralig’ida o‘sishi va ularning mahsuldorligi hududlar kesimida tahlili keltirilgan. Ushbu tarmoqni viloyatda rivojlantirish uchun taklif va tavsiyalar keltirilgan.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1880
T r o b o v X T, A t a v u l l a y e v a S h Sh, K a r i m o v X R, T u r s u n o v a G X, J u r a y e v a R A
Ionit tuzilishining geterofazaviy modeli asosida yaratilgan aralashmalarni ajratishning ionit-ekstraksion usulidan foydalanib qutbiy guruhlari dissotsilanadigan kuchli asosli anionitlar ARA-4P, ARA-12P, AV-17x8 va kuchli kislotali kationit KU-2x8 hamda qutbiy guruhlari dissotsilanmaydigan PVS kabi polimer gellar yordamida quyimolekulyarelektrolitlarning binar aralashmalari ajratilgan. Ajratish jarayonining samaradorligiga ionitlarning tabiati, ularning selektivligi, tarkibidagi funksional guruhlari, ko‘ndalang bog‘lar miqdori, shuningdek, aralashmalardagi moddalarning konsentratsiyasi va tabiati, ion zaryadlari kabi xususiyatlarining ta’siri ko‘rsatilgan.
离子萃取建议和 Foydalanib Qutbiy guruhlari dissotsilanadigan kuchli asosli anionitlar ARA-4P、AVA-17x8 va kuchli kislotali kationit KU-2x8 hamda qutbiy guruhlari dissotsilanmaydigan PVS kationit KU-2x8、ARA-12P、AV-17x8 和 KU-2x8 都是 PVS 聚合物萃取剂。我们还提供了各种功能性软件，如 "Ajratish jarayonining samaradorligiga ionitlarning tabiati"、"ularning selektivligi"、"tarkibidagi funksional guruhlari"、"ko'ndalang bog'lar miqdori"、"shuningdek"、"aralashmalardagi moddalarning konsentratsiyasi va tabiati"、"ion zaryadlari kabi xususiyatlarining ta'siri ko'rsatilgan"。
{"title":"POLIMER GELLARDA REAGENTSIZ USULDA ELEKTROLITLAR ARALASHMALARINI AJRATISH","authors":"T r o b o v X T, A t a v u l l a y e v a S h Sh, K a r i m o v X R, T u r s u n o v a G X, J u r a y e v a R A","doi":"10.59251/2181-1296.2023.v1.1.1880","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1880","url":null,"abstract":"Ionit tuzilishining geterofazaviy modeli asosida yaratilgan aralashmalarni ajratishning ionit-ekstraksion usulidan foydalanib qutbiy guruhlari dissotsilanadigan kuchli asosli anionitlar ARA-4P, ARA-12P, AV-17x8 va kuchli kislotali kationit KU-2x8 hamda qutbiy guruhlari dissotsilanmaydigan PVS kabi polimer gellar yordamida quyimolekulyarelektrolitlarning binar aralashmalari ajratilgan. Ajratish jarayonining samaradorligiga ionitlarning tabiati, ularning selektivligi, tarkibidagi funksional guruhlari, ko‘ndalang bog‘lar miqdori, shuningdek, aralashmalardagi moddalarning konsentratsiyasi va tabiati, ion zaryadlari kabi xususiyatlarining ta’siri ko‘rsatilgan.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-20DOI: 10.59251/2181-1296.2023.v1.1.1895
A m r i d d i n o v a D i l n o z a, N i g o r a R u s t a m o v a
Bioflocculants are polysaccharide-based, biodegradable macromolecules synthesized by soil microorganisms. A bacterium prodicing an extracellular bioflocculant wasisolated from the salty and dry soil and identified as Bacillus atrophaeus. Effects of culture conditions including carbon sources, nitrogen sources, pH, shaker speed on bioflocculant production were studied. Isolate comparative analysis of 16S rRNA sequence identified the isolate to have 99% similarity to Bacillus atrophaeus and it was deposited in the GenBank as Bacillus atrophaeus NR- 2 with accession number OP679007. The strain was characterized by ability to grow and synthesize the bioflocculant in alkaline conditions – pH 11. It was supposed that the strain can overcome adverse effects of environment – alkalinity and salinity by enhanced production of bioflocculant in stress. In the optimized medium (sucrose and tryptone used as C/N sources) the strain produced 4.76 mL bioflocculant.
{"title":"Isolation, identification and optimization of exopolysaccharide-based bioflocculant synthesis by soil bacteria Bacillus atrophaeus NR-12","authors":"A m r i d d i n o v a D i l n o z a, N i g o r a R u s t a m o v a","doi":"10.59251/2181-1296.2023.v1.1.1895","DOIUrl":"https://doi.org/10.59251/2181-1296.2023.v1.1.1895","url":null,"abstract":"Bioflocculants are polysaccharide-based, biodegradable macromolecules synthesized by soil microorganisms. A bacterium prodicing an extracellular bioflocculant wasisolated from the salty and dry soil and identified as Bacillus atrophaeus. Effects of culture conditions including carbon sources, nitrogen sources, pH, shaker speed on bioflocculant production were studied. Isolate comparative analysis of 16S rRNA sequence identified the isolate to have 99% similarity to Bacillus atrophaeus and it was deposited in the GenBank as Bacillus atrophaeus NR- 2 with accession number OP679007. The strain was characterized by ability to grow and synthesize the bioflocculant in alkaline conditions – pH 11. It was supposed that the strain can overcome adverse effects of environment – alkalinity and salinity by enhanced production of bioflocculant in stress. In the optimized medium (sucrose and tryptone used as C/N sources) the strain produced 4.76 mL bioflocculant.","PeriodicalId":187524,"journal":{"name":"2022-yil 3-son (133/1) ANIQ FANLAR SERIYASI","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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