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العنوان
Isolation of flavonoids from lemon juice and
their application in Ground water Treatment /
المؤلف
Alahmr, Abd elmoniem Elsayed Abd Alraof.
هيئة الاعداد
باحث / عبدالمنعم السيد عبد الرؤف الأحمر
مشرف / محى الدين عبد الفتاح عبد العاطى
مناقش / ماهر عبد العزيز الحشاش
مناقش / عمرو السيد المتولى
الموضوع
Ground water Treatment.
تاريخ النشر
2019.
عدد الصفحات
VII, 169 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الزراعية والعلوم البيولوجية (المتنوعة)
تاريخ الإجازة
8/12/2019
مكان الإجازة
جامعة قناة السويس - كلية التربية - كيمياء عضوية
الفهرس
Only 14 pages are availabe for public view

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Abstract

VII
LIST OF TABLES page
Table (1) Structure of flavonoied 17
Table (2)
Classification, structure and food sources of some
dietary falvonoids
20
Table (3)
DFT parameters calculated for the synthesized compounds
66
Table (4) Molecular interactions and interacting residues of the AchE
with chromene derivatives
Table (5) ADMET proprieties of the chromene derivatives.
Table (6)
Antimicrobial activity and diameter inhibition zone (mm) of
the synthesized compounds (NA → No Activity).
84
Table (7)
aMinimum Inhibitory Concentration; bCalculated values used
to generate QSAR models 86
Table (8)
Minimum inhibitory concentration (MIC, μg/mL) of the
newly synthesized compounds 87
SUMMARY
Summary
Chromone glycoside 2-5 was conveniently synthesized by green
chemistry methods in 3 steps of 2,4,6 - hydroxyacetophenone
(commercially available Phloracetophenone and Acetophloroglucine)
with the introduction of glucosyl by O-stereoselective glycosyl with
glucosyl peroxide in each O-followed chalcone by intensifying aldol
with cynamol. Finally, a removal was performed to create 3 and 5 b
yields of 13% and 14%, respectively. The functional density theory
(DFT) was then applied to explore the structural and electronic
properties of these materials. It was found that compound 2 showed the
highest antibacterial and antifungal activity against C. Albicans showing
increased biological convergence compared to cholesteremazole with
MIC values of 7.7 and 7.8 mg / ml, respectively. All compounds were
identified based on their preliminary analysis and spectral data. We
described a simple and practical artificial procedure whereby agate 1, 2
and 3 were synthesized in the total yield of 13%, 14% and 90%,
respectively. This proposed industrial route for these simple, simple
calcium glycosides can be used as a viable procedure for the synthesis of
SUMMARY
many calcium siliconesdesign, green synthesis of sixteen of novel 8-
azacoumarin derivatives. All compounds confirmed by IR and NMR
spectra, analytical data. DFT study to explain the product structures
under ultrasonic irradiation and their activities. These compounds were
evaluated for their antimicrobial activities against C. Albicans that show
increasing biological affinity compared to that of Colitrimazole drug
with MIC values 7.7 and 7.8 mg/mL, respectively. All the synthesized
compounds have been characterized based on their elemental analyses
and spectral data.
Full analysis of IR, NMR and MS spectra of isolated Hesperidin 3 from
extracted compounds 1 and 2 are good evidence for the structure assigned
to this compound; the C=O group at 1672 cm–1 corresponding to carbonyl
of the chromone ring. The lower value of the carbonyl group due to the
presence of intramolecular hydrogen bonds. Its 1H-NMR spectrum displays
specific signal of the OH protons is observed at δ 9.80-10.02 ppm as a
broad singlet. Scheme 1 outline the retrosynthetic analysis of the hesperidin
SUMMARY
compound 3. Due to the low yield of the hesperidin, quantum chemical
computation and (DFT) simulation help in synthesis of derivatives of the
chromones 4 and 5 that is nearer to hesperidin 3 and supported by elemental
analysis. In addition to quantum chemical parameters (Table 1) can be
helped which the functional groups are responsible in activation for
antimicrobial in ground water. So, the authors can be synthesized the
chromone derivatives 6-15 to support the antimicrobial activity as
compared to hesperidin in addition to utility of them in waste water
treatment by mechanism of degradation for Pharmaceuticals, Pesticides and
Textile dyes materials that responsible for water pollution
Figure 2. Structures of isolated chalcone glycoside from Lemon Juice.