Sodium Tripolyphosphate-Chitosan의 Polyelectrolyte Complex Coating이 Sulfanilamide 과립의 용출에 미치는 영향

구영순,김자영,김길수,Ku, Young-Soon,Kim, Ja-Young,Kim, Kil-Soo 대한약학회 1989 약학회지 Vol.33 No.6

Drug release from sulfanilamide granules coated with a polyelectrlyte complex of sodium tripolyphosphate and chitosan was studied. The coating film thickness increased with increasing concentration of chitosan in the coating solution and the drug release rates of the coated granules were significantly reduced comparing with those of the uncoated granules. $T_{50%}$ of the uncoated granules was 6 minutes, but those of the granules coated with chitosan-sodium tripolyphosphate from 0.5, 0.7, and 0.9% (w/v) chitosan-HCl solution were 27, 135, and 180 minutes, respectively in distilled water. In dissolution medium at pH 6.8, $T_{50%}$ of the uncoated granules was 4 minutes, but those of the granules coated with chitosan-sodium tripolyphosphate from 0.5, 0.7, and 0.9(w/v)% chitosan-HCl solution, were 32, 135, and 160 minutes, respectively.

Novel double-walled microspheres based on chitosan, sodium cellulose sulfate and sodium tripolyphosphate: Preparation, characterization and in vitro release study

Li-Ying Zhu,Xiao-Qin Yan,Hong-Man Zhang,Shan-Jing Yao,Ling Jiang 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.3

A novel double-walled microsphere composed of chitosan, sodium cellulose sulfate (NaCS) and sodiumtripolyphosphate (TPP) was prepared. TPP was used as ionic crosslinker. The morphology of the microspheres wasobserved by microscope and SEM, and the results showed that the double-walled microsphere was smooth outside,with rough interior surface. FTIR spectra analysis was performed to investigate the PEC formation among chitosan,NaCS, and TPP. In vitro release studies of BSA showed that the double-walled microspheres had regular and sustainablerelease profiles in simulated colonic fluid (SCF). Our results indicated that the double-walled microspheres preparedcould be used as a candidate protein drug carrier for the colon.

트리폴리인산염을 이용한 산성광산배수 내 칼슘 및 철이온 제거

현재혁(Hyun Jaehyuk),전형중(Jeon Hyungjoong),김지훈(Kim Jihoon) 한국지반환경공학회 2009 한국지반환경공학회논문집 Vol.10 No.5

이 연구는 산성광산배수(AMD, Acid Mine Drainage)를 대상으로 트리폴리인산나트륨의 적용을 평가한다. 경북에 위치한 문경 석탄탄광으로부터 발생한 AMD와 트리폴리인산나트륨의 회분식 반응실험에서 얻어진 결과에 근거하면, AMD를 처리하기 위한 트리폴리인산나트륨의 최적주입량은 4.7×10<SUP>-3</SUP>㏖e이었다. Ca<SUP>2+</SUP>의 경우 농도가 16.4㎎/ℓ에서 처리 후 5.6㎎/ℓ로 감소하여 제거율은 65.9%이고, Fe3+의 경우 농도가 3.7㎎/ℓ에서 처리 후 0.02mg/ℓ로 감소하여 제거율은 99.5%이다. 그러나 SO₄<SUP>2-</SUP>의 경우 농도가 526.8㎎/ℓ에서 566.5㎎/ℓ 범위로 증가나 감소경향이 나타나지 않았다. 트리폴리인산나트륨을 사용한 결과, AMD 내 Na?의 농도는 549.8㎎/ℓ~599.3㎎/ℓ이고 정인산염은 6.82㎎/ℓ~7.60㎎/ℓ였다. 트리폴리인산나트륨과 AMD의 반응에서 발생한 침전물을 SEM, XRF, XRD로 분석한 결과 침전물의 형태는 인회석≫β-인산삼칼슘>산화철(Fe(OH)₃)인 것으로 판단된다. 결과적으로 트리폴리인산염의 사용은 AMD에서 Fe<SUP>3+</SUP>, Ca<SUP>2+</SUP> 제거와 pH 완충에 있어서 우수한 것으로 나타났다. This study evaluates tripolyphosphate’s ability to treat AMD (Acid Mine Drainage). Based on the batch test results for reaction between tripolyphosphate and AMD obtained from Munkyung coal mine, 4.7×10<SUP>-3</SUP> ㏖e is the optimum dosage of tripolyphosphate for AMD treatment. Ca<SUP>2+</SUP> concentration is decreased from 16.4 ㎎/ℓ to 5.6 ㎎/ℓ, in other words, the removal rate of Ca<SUP>2+</SUP> is 65.9%. Fe<SUP>3+</SUP> concentration is decreased from 3.7 ㎎/ℓ to 0.02 ㎎/ℓ, that is, the removal rate of Fe<SUP>3+</SUP> is 99.5%. SO₄<SUP>2-</SUP> concentration ranges from 526.8 ㎎/ℓ to 566.5 ㎎/ℓ, which shows no obvious decrease. After dosing up tripolyphosphate, Na? concentration in AMD ranges from 549.8 ㎎/ℓ to 599.3 ㎎/ℓ and orthophosphate concentration in AMD ranges from 6.82 ㎎/ℓ to 7.60 ㎎/ℓ. It was found that the precipitate in the order of amount is Apatite≫β-tricalcium phosphate 〉Fe(OH)₃ from SEM, XRF, XRD analyses. Consequently, the treatment by tripolyphosphate is effective in pH buffering and in the removal of Ca<SUP>2+</SUP> and Fe<SUP>3+</SUP>.

Preparation, characterization and lead adsorption study of tripolyphosphate-modified waste Lyocell fibers

Bediako, John Kwame,Reddy, D. Harikishore Kumar,Song, Myung-Hee,Wei, Wei,Lin, Shuo,Yun, Yeoung-Sang Elsevier 2017 Journal of environmental chemical engineering Vol.5 No.1

<P><B>Abstract</B></P> <P>A facile modification of waste textile cellulose Lyocell fibers with tripolyphosphate and application of the adsorbent thereof to the treatment of Pb(II)-contaminated wastewater was investigated. Characterization and batch adsorption studies were conducted to understand the characteristics of the prepared adsorbent and its metal binding mechanisms. The adsorbent showed 100% adsorptive removal efficiency of Pb(II) at initial concentrations up to 300mg/L, and the adsorption performance was significant even at low pH ranges. The adsorption isotherm followed the Langmuir model, and the kinetic was described by the pseudo-first and pseudo-second order models. By comparison, the adsorbent showed strong competitiveness to existing ones especially in terms of the adsorption capacity, pH, and kinetics of adsorption, and could be reused. Considering its cheap source and simplicity of preparation, the adsorbent could be applied as a low-cost material for heavy metal scavenging from wastewater streams.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A facile method for preparing cellulosic heavy metal adsorbent with phosphate chelating groups was presented. </LI> <LI> High selectivity of Pb(II) was found in multi-metal systems. </LI> <LI> Hundred percent adsorption efficiency of Pb(II) at initial concentrations up to 300mg/L was achieved. </LI> <LI> Adsorption capacity was very high even at low pH. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Surface and pore modification of tripolyphosphate-crosslinked chitosan/polyethersulfone composite nanofiltration membrane; characterization and performance evaluation

Zahra Afsarian,Yaghoub Mansourpanah 한국화학공학회 2018 Korean Journal of Chemical Engineering Vol.35 No.9

A PES-based composite nanofiltration membrane was prepared by spreading a thin layer of sodium tripolyphosphate (STPP)-modified chitosan (CS) on a PES membrane. Two approaches of modification were employed: coating, and injecting the chitosan solution into PES membrane by applying pressure. Physicochemical properties of the prepared membranes were characterized by FTIR-ATR, zeta potential, contact angle, AFM and FE-SEM methods. AFM images showed a denser and more compact surface for STPP-modified membranes compared to the unmodified one. The membranes prepared by the second approach illustrated favorable properties: the increase of both flux and rejection. Engaging of -NH2 groups in CS with polyanionic phosphate groups of STPP resulted in less availability of functional groups. Furthermore, denser and relatively higher positively charged surface could be the main reasons for higher rejection of membrane composed of 0.05wt% STTP towards copper ions in comparison with the other membranes. Furthermore, the presence of SO4 2 ions in the CuSO4 solution slightly changed the positive charge of the membrane surface, resulting in tangible variations in rejection. According to the Donnan exclusion theory, relative increase of the negative charge of the surface in the presence of the highest concentration of STTP caused less NaCl and CuSO4 rejection compared to the other STPP modified membranes.

규산계 시멘트 주입재의 강도와 STPP의 상관관계

성화돈 ( Sung Hwa-don ),황의성 ( Hwang Yi-sung ),천병식 ( Chun Byung-sik ) 한국구조물진단유지관리공학회 2007 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.11 No.1

Portland cement and sodium silicate are widely used as the main components of the injection, which are used to prevent flow and improve ground condition. The main problem of the injection material is the leaching of the sodium hydroxite and silicate due to the limited reaction with the cement. In this paper, the effect of cement dydration retarder on the compressive strength of the sodium silicate - cement gel was studied. A series of tests, including digital-type testing machine, X-ray diffraction and scanning electron microscope were performed. Results were clearly demonstrated that the sodium tripolyphosphate(STPP), which was the cement hydration retarder in the test, significantly improved the initial strength of the homogel.

규산계 시멘트 주입재의 강도와 STPP의 상관관계

성화돈(Sung Hwa-Don),황의성(Hwang Yi-Sung),천병식(Chun Byung-Sik) 한국구조물진단유지관리학회 2007 한국구조물진단학회 학술발표회논문집 Vol.11 No.1

Portland cement and sodium silicate are widely used as the main components of the injection, which are used to prevent flow and improve ground condition. The main problem of the injection material is the leaching of the sodium hydroxite and silicate due to the limited reaction with the cement. In this paper, the effect of cement dydration retarder on the compressive strength of the sodium silicate-cement gel was studied. A series of tests, including digital-type testing machine, X-ray diffraction and scanning electron microscope were performed. Results were clearly demonstrated that the sodium tripolyphosphate(STPP), which was the cement hydration retarder in the test, significantly improved the initial strength of the homogel.

Evaluation of physicochemical and textural properties of chicken breast sausages containing various combinations of salt and sodium tripolyphosphate

( Ji Seon Choi ),( Koo Bok Chin ) 한국축산학회(구 한국동물자원과학회) 2020 한국축산학회지 Vol.62 No.4

This study was to investigate the effect of salt alone or in combination with phosphate on physicochemical and textural properties, and chemical interactions of low-fat model sausages. pH, color, expressible moisture (EM), cooking loss (CL), proximate analysis, textural profile analysis and low-vacuum scanning electron microscopy were performed. As salt content increased, color tended to decrease, as did EM and CL parameters, indicating that the ability to retain moisture was improved with increased salt levels (p < 0.05). In addition, textural hardness, gumminess and chewiness all increased with increasing salt (p < 0.05). Sausages with 0.3% salt showed the lowest cohesiveness compared to those with salt levels higher than 0.3% (p < 0.05). Addition of sodium tripolyphosphate (STPP) increased pH of sausages. Increasing salt and STPP did not affect lightness (p > 0.05), but did increase redness and yellowness (p < 0.05). The moisture content was higher when the salt and STPP contents were increased (p < 0.05), but no differences in the fat and protein contents (%) were observed (p > 0.05). EM and CL tended to decrease with increasing salt and STPP. In textural properties, the combination of 1.8% salt and 0.3% STPP was the best among other treatment (p < 0.05). Surface microstructure showed a flat and dense structure with increasing salt and STPP. Since the addition of salt and phosphate improved the functionality, textural and physicochemical properties of meat products in this study, meat products will need to be developed in line with consumer’s preference.

Evaluation of citrus fiber as a natural alternative to sodium tripolyphosphate in marinated boneless broiler chicken breast and inside beef skirt (transversus abdominis)

Kendal R. Howard,Cheyenne L. Runyan,Allen B. Poe,Andrew M. Cassens,Lea A. Kinman Asian Australasian Association of Animal Productio 2024 Animal Bioscience Vol.37 No.1

Objective: This research was conducted to evaluate the effects of citrus fiber (CF) as a natural alternative to sodium tripolyphosphate (STPP) in marinated broiler boneless chicken breast and inside beef skirt on overall retention rate, shear force, and consumer sensory attributes. Methods: Five different marinade formulations were targeted to include 0.9% salt, either 0.25% or 0.50% STPP or CF and water on a finished product basis. Water and salt only were considered the negative control (CON). Chicken breasts (n = 14) and inside beef skirt (n = 14) were randomly assigned to a treatment, raw weights recorded and then placed in a vacuum tumbler. Marinated weights were recorded, individually packed, and randomly assigned to either retail display for 10-day retention rate, shear force analysis, cook loss, or consumer sensory panel. Results: Pickup percentage, and overall retention was similar among treatments for chicken breast and inside beef skirt. Citrus fiber treatments resulted in higher cooking loss compared to the CON in chicken breast; though, CF050 resulted in similar cooking loss compared to STPP025 in inside beef skirt. No differences were found in sensory attributes for chicken breast, however, WBSF data showed CF025 was tougher than CF050, STPP050, and CON. Inside beef skirt with CF050 were least liked overall by the consumer panel. Conclusion: Citrus fiber included in marinades at a lower percentage rate can produce similar texture characteristics, and sensory properties compared with those marinated with STPP.

Limiting Pink Discoloration in Cooked Ground Turkey in the Absence or Presence of Sodium Tripolyphosphate Produced from Presalted and Stored Raw Ground Breasts

James R. Claus,정종연 한국축산식품학회 2023 한국축산식품학회지 Vol.43 No.2

The effects of pink inhibiting ingredients (PII) to eliminate the pink color defect in cooked turkey breast produced from presalted and stored raw ground turkey in the absence or presence of sodium tripolyphosphate (STP) were examined. Ground turkey breast was mixed with 2% sodium chloride and vacuum packaged. After storage for 6 d, ten PII were individually incorporated without or with added STP (0.5%) as follows: none (control), citric acid (CA; 0.1%, 0.2%, 0.3%), calcium chloride (CC; 0.025%, 0.05%), ethylenediaminetetraacetic acid disodium salt (EDTA; 0.005%, 0.01%), and sodium citrate (SC; 0.5%, 1.0%). Treatments were cooked at a fast or slow cooking rate, cooled, and stored before analysis. All PII tested were capable of lowering inherent pink color compared to the control (No STP: CIE a* pooled day reduction of 23.0%, 5.2%, 12.6%, and 12.6% for CA, CC, EDTA, and SC, respectively; STP: reduction of 21.5%, 17.4%, 6.0%, and 18.2% for CA, CC, EDTA, and SC, respectively). For samples without STP, fast cooking rate resulted in higher CIE a*. However, slow cooking resulted in more red products than fast cooking when samples included STP. Presalting and storage of ground turkey caused the pink discoloration in uncured, cooked turkey (CIE a* 6.24 and 5.12 for without and with STP). This pink discoloration can be decreased by inclusion of CA, CC, EDTA, or SC, but incorporation of CA decreased cooking yield. In particular, the addition of SC may provide some control without negatively impacting the cooking yield.