Chemistry, like all the natural sciences, Recommanded Product: 2-Pyridylethylamine, begins with the direct observation of nature¡ª in this case, of matter.2706-56-1, Name is 2-Pyridylethylamine, SMILES is C1=C(CCN)N=CC=C1, belongs to pyridine-derivatives compound. In a document, author is Wei, Lijie, introduce the new discover.
The antioxidant and antifungal activity of chitosan derivatives bearing Schiff bases and quaternary ammonium salts
In order to improve the antioxidant and antifungal activity of chitosan, eight chitosan derivatives containing Schiff bases and quaternary ammonium salts were synthesized via an intermediate 6-O-chloroacetyl-2-N,N,N-trimethyl quaternary ammonium salt chitosan. Detailed structural characterization was carried out using FTIR and H-1 NMR spectroscopy, and elemental analysis. The antifungal activity against F. oxysporum f sp. cucumerium, B. cinerea, and F. oxysponim f sp. niveum was evaluated using a mycelium growth rate test. The results indicated that the chitosan derivatives exhibited enhanced antifungal activity when compared to chitosan, especially at 1.0 mg/mL. 644-(2,3-dihydroxyl-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (2.3HBPATC), 6-[4-(2,3,4-trihydroxyl-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (2.3.4HBPATC), 6-[4-(2-fluorine-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (FBPATC), 644-(2-chlorine-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (CBPATC), 6-[4-(2-bromine-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (BBPATC), and 644-(2-hydroxyl-4-chlorine-benzimide) pyridine] acetyl-2-N,N,N-trimethyl-chitosan chloride (HCBPATC) showed inhibitory indices > 90.0% at 1.0 mg/mL against F. oxysporum f sp. cucumerium and B. cinerea. Furthermore, the chitosan derivatives showed stronger antioxidant activity than chitosan, especially 2.3HBPATC and 2.3.4HBPATC with inhibitory indices of 100.0% at 1.6 mg/mL against DPPH and superoxide radicals. Based on these data, it is reasonable to suggest that the introduction of phenolic hydroxyl and halogen groups enhances the antifungal and antioxidant activity of chitosan.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 2706-56-1. Recommanded Product: 2-Pyridylethylamine.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem