proteose


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Related to proteose: bile, cellular respiration

pro·te·ose

(prō'tē-ōs),
A nondescript mixture of intermediate products of proteolysis between protein and peptone.

proteose

(prō′tē-ōs′, -ōz′)
n.
Any of various water-soluble compounds that are produced during digestion by the hydrolytic breakdown of proteins.

proteose

An obsolete term originating from an abandoned classification based on the degree of hydrolysis of proteins: proteoses are those peptides small enough to be soluble in water, but large enough to be precipitated by ammonium sulphate.

pro·te·ose

(prō'tē-ōs)
A nondescript mixture of intermediate products of proteolysis between protein and peptone.
References in periodicals archive ?
When 0.45% (w/v) proteose peptone was present, 88 cells showed heavy uptake, 10 medium, and two light.
Soybean meal, Yeast extract, Proteose peptone, Urea, Potassium nitrate, Ammonium sulfate were evaluated for xylanase production using Aspergillus fumigatus SKF-4.
Name Origin/molecular mass Amino acid sequence E-5-K Residues 1-5 of [alpha]- H,N-EQLTK-COOH lactalbumin/689 g/mol L-16-Y Residues 164-179 of EEN-LKKISQRYQKFALPQY- [alpha]-casein/2011.4 Da COOH N-23-T or Residues 113-135 of [H.sub.2]N- Lactophoricin-I bovine component-3 of NTVKETIKYLKSLFSHAFEWKT (LPcin-I) proteose peptone -COOH (PP3)/2683 Da Name Total net Total No.
Axenic and Monoxenic cultivation in proteose peptone yeast extract glucose (PYG) medium
Samples from both sites contained strains capable of growth on crude oil as a sole source of carbon (unconditional strains) along with strains that could degrade oil if proteose peptone was available in the growth medium (conditional strains).
Tetrahymena thermophila strain B7 was grown axenically in PY medium: 0.75% proteose peptone (Difco), 0.75% yeast extract (Difco), 1.5% glucose, 1 mM [MgSO.sub.4], 50 [mu]M [CaCl.sub.2], and 100 [mu]M ferric citrate.
The composition of media was: [(N[H.sub.4]).sub.2]S[O.sub.4]-1.4 gm, K[H.sub.2]P[O.sub.4]-2.0 gm, Ca[Cl.sub.2]-0.3 gm, [Urea.sup.*#]-0.3 gm, MgS[O.sub.4].7[H.sub.2]O*-0.3 gm, FeS[O.sub.4].7[H.sub.2]O*-5.0 mg, MnS[O.sub.4].7[H.sub.2]O*-1.6 mg, ZnS[O.sub.4].7[H.sub.2]O*-1.4 mg, CO[Cl.sub.2]-2.0 mg, Proteose peptone-1.0 gm, Tween 80-1.0 ml, Cellulose-10.0 gm, Distilled water-1000 ml, pH-5.0[+ or -]0.2.
An aliquot of the water sample (100 [micro]L) was plated on Difco Reasoner's 2A agar (0.5 g/L proteose; 0.5 g/L casamino acids; 0.5 g/L yeast extract; 0.5 g/L dextrose; 0.5 g/L soluble starch; 0.3 g/L dipotassium phosphate; 0.05 g/L magnesium sulfate; 0.3 g/L sodium pyruvate) and incubated at 37[degrees] C under aerobic growth condition for 3 days.
LB [2% (w/v) proteose peptone and 0.1% (w/v) Bacto yeast extract], wheat and rice grain medium (one boiled rice and wheat grain in 10 ml of distilled water) and Bold-basal salt medium [NaNO3 (0.25 g l-1), CaCl2.H2O (0.025 g l-1), MgSO4.7H2O (0.075 g l-1), K2HPO4 (0.075 g l-1), KH2PO4 (0.175 g l-1), NaCl (0.025 g l-1), EDTA (0.05 g l-1), KOH (0.031 g l-1), FeSO4.7H2O (0.04 g l-1), H2SO4 (0.001 M), H3BO3 (0.01142 g l-1), ZnSO4.7H2O (0.00881 g l-1), MnCl2.4H2O (0.00144 g l-1), MoO3 (0.00071 g l-1), CuSO4.5H2O (0.00157 g l-1) and Co(NO3) 2.6H2O (0.00049 g l-1)], diluted 1:1000 with distilled water, with 5-7 wheat grains (Shakoori et al., 2004).
Peptone yeast-extract glucose (PYG): 100 g proteose peptone (Difco, Sparks, MD), 10 g yeast-extract (Merck, Darmstadt, Germany), 4.9 g MgS[O.sub.4].7[H.sub.2]O, 5 g sodium citrate.2[H.sub.2]O, 0.1 g Fe[[(N[H.sub.4]).sub.2] [[(S[O.sub.4]).sub.2].6[H.sub.2]O, 1.7 g K[H.sub.2]P[O.sub.4], 1.97 g [Na.sub.2] HP[O.sub.4].7[H.sub.2]0, 45 g glucose, and 0.295 g Ca[Cl.sub.2] in 5 L of distilled water.