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3,4-Dimethoxychalcone and rutin, a flavonoid that contains chromophore groups, can absorb UV light and thus can be developed as a sunscreen. The objective of this study was to determine the optimum formula of 3,4-dimethoxychalcone and rutin containing gel, evaluate its physical stability, and activity of 3,4-dimethoxychalcone and rutin gel as a sunscreen through in vitro and in vivo tests. HPMC, CMC-Na, and methylcellulose were formulated into a gel base to obtain good adhesion and a clear appearance gel. Simplex Lattice Design (SLD) with Design Expert software version 10 was utilized to determine the optimum gel formulation. UVA-PF protection, photostability with transpore method, and acute dermal irritation test were performed to evaluate sunscreen activity of 3,4-dimethoxychalcone and rutin gel. The data were analyzed using SPSS version 25. The results showed that the optimum formula for 3,4-dimethoxychalcone-rutin gel consisted of 1.5% HPMC, 1.8% CMC-Na and 0.6% methylcellulose, which showed a pH of 6.96, viscosity of 89.10 dpa.s, and spreadability of 16.30 cm2. The pH, viscosity, and spreadability of base and 3,4-dimethoxychalcone- rutin gel was stable for 4 weeks of storage. The UVA-PF value is 6.48 which according to the FDA is included in the category of a two star (**) sunscreen label. The sunscreen did not exhibit a shift in wavelength after 6 hours of irradiation. Based on the primary irritation test, 3,4-dimethoxychalcone- rutin sunscreen produced zero (0) erythema and edema index. Thus, it did not cause irritation to the skin of experimental animals. Therefore, the gel containing 3,4-dimethoxychalcone and rutin had potential as a sunscreen product based on in vitro-in vivo tests and was safe on animal skin.

Arabica green coffee beans (AGCB) have antioxidant compounds as photo protectors. It’s used to stabilize and increase the SPF value of octyl methoxycinnamate in sunscreen because its effectiveness will be decreased when exposed to UV light. The purpose of this study was to determine the effect of a combination of various concentrations of arabica green coffee bean (AGCB) extract and octyl methoxycinnamate (OMC) on the physical properties and SPF value of sunscreen cream. AGCB extract with concentrations (F1) 0%; (F2) 2.5%; (F3) 5%; (F4) 7.5% (with the addition of OMC concentration of 7.5%), and (F5) 7.5% (without the addition of OMC). The formulas were tested for physical properties to determine stability in 4 weeks of storage, cycling test for 4 cycles, and photostability to determine the SPF value and irritation test on the best formula. The results of the physical stability test on the five formulas showed a sig value > 0.05 which means the preparation is stable. Formulas F1, F2, F3, F4, and F5 with exposure of 1 hour, 5 hours, and 10 hours obtained a significance value > 0.05, which means that the presence of UV light exposure in the AGCB extract combination cream can stabilize the decrease in SPF value. Formula 4, which is stable without separation during the cycling test and the stability of the SPF value of 41, then in the irritation test does not cause irritation so it can be concluded that formula 4 is the optimum formula.

Abstract: The 4-hydroxychalcone compound is a flavonoid derivative that has benzene rings with unsaturated chains and a chromophore group, which can absorb UV rays and reduce the intensity of radiation exposure to the skin. This study aims to examine the effect of gelling agents on the physical properties of gel preparations, optimum formula stability, and activity of 4-hydroxychalcone gel as a sunscreen in vitro. Base optimization was carried out using Design Expert software version 10 with the simplex lattice design method and variations in gelling agent concentrations, namely carbopol, sodium carboxymethylcellulose (CMC-Na), and gelatin. The activity of 4-hydroxychalcone sunscreen gel was determined spectrophotometrically by determining the Sun Protecting Factor (SPF) value, the percentage of erythema transmission (%TE), and the percentage of pigmentation transmission (%TP). Data were analyzed statistically with SPSS software. The results showed that the optimum formula composition was obtained at a concentration of 0.67% carbopol, 2% CMC-Na, and 1.83% gelatin. The optimum formula of 0.5% 4-hydroxychalcone gel was stable during storage at room temperature and did not experience syneresis during 72 hours of storage at ± 10°C. The 0.5% 4-hydroxychalcone gel gave an SPF value of 27.37 % TE was 1.76% and % TP was 10.21%, therefore it is categorized as a sunblock.

Abstract: In recent years, skincare with natural ingredients is being developed for it has fewer side effects and is relatively suitable for all skin types. One of the potential ingredients from the natural ingredients is sunflower seed oil, which has proven to have potential as a skin moisturizer and fight acne bacteria. The purpose of this study was to make a gel formulation of sunflower seed oil by optimizing the combination of the gelling agent of HPMC and Na-CMC. The Simplex Lattice Design method was used to optimize the gel base with Design Expert software version 13. There were 8 gel formulas made and evaluated including organoleptic, homogeneity, pH, viscosity, spreadability, and adhesion. The independent variables in SLD were the amount of HPMC and Na-CMC, while the responses included pH, viscosity, and spreadability. The optimal formula suggested by SLD is a combination of 1.451% HPMC and 1.549% Na-CMC. The optimal formula has a pH of 6.813 ± 0.041, a viscosity of 194.8 ± 2.94 dPas, an adhesion of 6.29 ± 0.50 seconds, and a spreadability of 21.5 ± 10.05 cm2. The optimum prediction formula from the software has no significant difference from the test results which show that the method can be used to predict the physical properties of sunflower seed oil gel preparations. The results of the physical stability test also stated that its physical properties were stable in terms of pH, viscosity, spreadability, and adhesion.

Second-degree burns have the highest prevalence and often occur in the household environment. The healing process can be accelerated by traditional medicine. One of the many plants known to have wound-healing abilities is the Binahong plant (Anredera cordifolia (Ten.) Steenis). The gel preparation is chosen because of the many benefits it can provide. The gelling agents used were Hydroxypropyl Methyl Cellulose and Hydroxyethyl Cellulose. The combination of these gelling agents was chosen because both agents are capable of producing gel preparations with good stability during storage. Therefore, the optimization was carried out to obtain the optimum formula that met the requirements. The observed responses were organoleptic, pH, spreadability, adhesion, viscosity, and homogeneity. The data obtained was optimized with the Simplex Lattice Design program in Design Expert software version 13.0.0. The results of the verification test were compared for their significance with the T-test with a 95% confidence level. The optimum gel stability of Binahong leaves (Anredera cordifolia (Ten.) Steenis) was tested using one-way ANOVA and post hoc. The results showed that the optimum formula for Binahong leaf extract gel (Anredera cordifolia (Ten.) Steenis) was obtained with a composition ratio of 0.5% HPMC and 4.5% HEC. The verification results obtained valid values for pH response, viscosity, and spreadability according to SLD predictions. The optimum formula for Binahong leaf extract gel (Anredera cordifolia (Ten.) Steenis) was stable during the cycling test.

Excessive ultraviolet (UV) radiation from the sun can harm human skin, such as skin erythema or sunburn, premature aging of the skin, darker skin discoloration, and damage to skin cells. Skin protection, like sunscreen, is needed to prevent the negative effects of UV rays. This study aims to evaluate the optimum formula, the physical properties, and the activity of a sunscreen gel preparation of sunflower seed oil in vitro. The method in this study was optimization with Design Expert version 10 of the carbopol gelling agent and sodium carboxymethyl cellulose. The optimum formula obtained was tested for its physical properties and activity as a sunscreen in vitro with a spectrophotometer. The results showed that the physical properties of the optimum formula were good, and stable during storage, pH, spreadability, adhesion, and viscosity were close to predictions, and the in vitro SPF test obtained a value of 15.60.

Based on recent studies, the ethanolic extract of Kembang Bulan leaves (Tithonia diversifolia[A.Gray]) has an anti-keloid effect. This study aims to determine the optimum formula for cream preparations with paraffinum liquidum, cetyl alcohol, and stearyl alcohol. Inappropriate comparison of additional ingredients results in the physical properties of the preparation becoming unstable during storage. The optimum formula was obtained from the optimization using Simplex Lattice Design (SLD) by software Design Expert version 10.0. The parameters measured were viscosity, pH, spreadability, adhesive ability, and accelerated study (centrifugation). The optimum cream formula consists of 19.11% b / b; Cetyl alcohol with a level of 2.01% b / b; stearyl alcohol with a level of 1.49% b / b with a viscosity of 134.35 dPa.s, a spread of 5.78 cm, pH 6.243, and adhesive ability of 13.61 seconds. The cream base produced is milky white, has a viscosity of 143.99 dPa.s, a spread of 5.7 cm, pH 6.305, and adhesion to 14.57 seconds. There is a significant difference in viscosity and pH of the experimental and software prediction. However, there is no significant difference in adhesive ability and spreadability response. The cream base and ethanolic extract of Kembang Bulan leaves have a significant difference in physical stability except for its spreadability. During the 4 weeks of storage, both of the creams are relatively stable. The cream is stable after centrifugation.

Abstract In the present work, three hydroxyxanthones were synthesized in 11.15–33.42% yield from 2,6-dihydroxybenzoic acid as the starting material. The chemical structures of prepared hydroxyxanthones have been elucidated by using spectroscopic techniques. Afterward, the hydroxyxanthones were evaluated as antioxidant agents through radical scavenging assay; and anticancer agents through in vitro assays against WiDr, MCF-7, and HeLa cancer cell lines. Hydroxyxanthone 3b was categorized as a strong antioxidant agent (IC50 = 349 ± 68 µM), while the other compounds were categorized as moderate antioxidant agents (IC50 > 500 µM). On the other hand, hydroxyxanthone 3a exhibited the highest anticancer activity (IC50 = 184 ± 15 µM) and the highest selectivity (SI = 18.42) against MCF-7 cancer cells. From the molecular docking study, it was found that hydroxyxanthone 3a interacted with the active sites of Topoisomerase II protein through Hydrogen bonding with DG13 and π–π stacking interactions with DA12 and DC8. These findings revealed that hydroxyxanthones are potential candidates to be developed as antioxidant and anticancer agents in the future.

Chalcone is flavonoids class that have activity as sunscreen. The objective of this research is to find out the optimum formula of chalcone lotion, physical properties and stability of optimum formula lotion o/w, and sunscreen activity by spectrofotometry.         The optimum formula was obtained by Simplex Lattice Design (SLD) method using Design Expert® version 10. To determine the optimum formula used three responses, namely viscosity, spreading, and adhessiveness. The physical properties of the lotion o/w were carried out including spreading test, adhessiveness test, and viscosity. The physical stability test of lotion o/w was done by cycling test. The sunscreen lotion activity o/w is determined by spectrophotometry by determining SPF, %Erythema Transmission, and %Pigmentation Transmission. Data were analyzed by t-test and One Way ANOVA with 95% confidence level. The results showed that the optimum lotion formula was found in combination of 2.40% cetyl alcohol, 0.36% carbopol, and 5.74% glycerin. The optimum formula of chalcone lotion has a viscosity of 73.48 ± 6.18 dPas, adhesiveness of 7.14 ± 1.26 seconds, and a spreading power of 24.99 ± 1.11 cm2. The results of statistical analysis showed that the lotion has a pretty good stability. Lotion has activity as sunscreen at concentration of chalcone in lotion 0,05% with SPF 36,927 and can provide protection against erythema and pigmentation.

Crude oil is an indispensable energy feedstock for daily activities, although some amounts of metallic porphyrins components with undesired characteristics have been identified. These constituents are assumed to originate from the geochemical process of chlorophyll and heme derivatives. In addition, their chemical structures have been thoroughly characterized using spectroscopy techniques, while several analytical methods were adopted in the detection and concentration quantification in the crude oils. The metallic porphyrins have several demerits, including the deactivation of used catalysts, contamination of the treated petrochemical products, and corrosion of the industrial equipment. Also, the removal process is considered challenging due to the strong interaction with the asphaltene fraction of crude oil. This review article, therefore, provides brief information on the origin, physicochemical properties, and possible removal technology of metallic porphyrins from crude oil samples. Besides, a better understanding of chemistry contributes a useful insight towards the development and establishment of better futuristic processing technology.

Tetrahydropentagamavunon-0 (THPGV-0) is a curcumin metabolite analog which known has a higher antioxidant activity than Vitamin E. This compound has been formulated in lotion as antiaging cosmetics, but the irritation effect is unknown yet. This study aims to analyze the effect of variation of THPGV-0 concentration in lotion and emulgel formula toward acute dermal irritation. The concentrations of THPGV-0 varied to 0.1%, 0.2%, and 0.4% in lotion/emulgel and tested for their physical properties such as organoleptic, homogeneity, pH, spreadability, and adhesion. Acute dermal irritation test is done in accordance with the In vivo Nonclinical Toxicity Test Guidelines by the Indonesian Food and Drug Administration (BPOM). This study showed that Primary Irritation Index (PII) value concentrations of 0.1%, 0.2%, and 0.4% THPGV-0 in lotion formula are 0.014, 0.014, and 0.028 (close to 0) and in emulgel formula are 0.08 at concentration of 0.1%, 0.33 at concentration of 0.2%, and 0.25 at concentration of 0.4%. PII of 0.1%, 0.2%, and 0.4% THPGV-0 in lotion and emulgel is included in negligible irritation response. Hence, the both of THPGV-0 formula in lotion and emulgel are considered safe to use on skin according to this study.

UltravioletA (UVA) rays with an intensity of 95% can induce skin cancer due to the activation of reactive oxygen species (ROS). The 3,4-dimethoxychalcone (3,4-DMC) chalcone derivative has a wide wavelength, antioxidant activity, presumed has activity as sunscreen (UVA rays). Topical delivery of water-insoluble 3,4-DMC with log P 3.84 required capable, cream formulation was chosen because it was suitable for application this chemical sunscreen. This study aims to obtain the optimal formulation of 3,4-DMC in a sunscreen cream dosage form as a UVA-protection factor (UVA-PF). This study involves experimental design. The cream 3,4-DMC was evaluated physically for 4 weeks by measuring pH, viscosity, spreadability, adhesion, centrifugation, freeze–thaw, photostability, UVA-PF used TranporeTM tape, and skin irritation test on animals. The result obtained was evaluated statistically using ANOVA (SPSS version 24). The ratio UVA/UVB value of 3,4 DMC sunscreen cream having 5 stars (*****) for all concentrations, shows the product in this study can be used as an anti-UVA agent in sunscreen cream cosmetic products. The stability of the cream has pH 4.0–4.2; spreadability 5–6 cm; viscosity 4.470–5.763; and adhesion

Four chalcone derivatives were synthesized and pre-evaluated as broad-spectrum UV protector. Chalcones 1-4 showed a wide range of UV absorbance values and moderate molar absorptivity values. Chalcones 3 and 4 showed better photostability than chalcones 1 and 2 because the lowering of their absorbance was smaller and slower under UVB irradiation. A combination of the spectra of chalcone derivatives 1-4 indicated that a formulation containing all four will provide a broad-spectrum sunscreen protecting the skin from UVA and UVB.

Indonesia is rich with essential oils such as anise and clove leave oils. In respect to explore the potential utilization of these resources, it has been conducted the transformation of p-hydroxybenzaldehyde and vanillin (4-hydroxy-3-methoxy benzaldehyde) respectively derived from anise oil and clove leaves oil to a series of C-arylcalix[4]resorcinarenes and C-arylcalix[4]pyrogallolarene macrocycles. Treatment of these aldehydes with resorcinol in the presence of HCl in absolute ethanol at reflux for 8 h afforded C-4-hydroxyphenylcalix[4]resorcinarene (3a) and C-4-hydroxy-3-methoxy phenyl-calix[4]resorcinarene (3b) in good yields. When the aldehydes were treated with pyrogallol under the similar condition, the products were C-4-hydroxyphenyl calix[4]pyrogallolarene (3c) and C-4-hydroxy-3-methoxyphenylcalix[4]pyrogallolarene (3d) which were also obtained in excellent yields. Treatment of these calix[4]resorcinarenes and calix[4]pyrogallolarenes with cinnamoyl chloride and benzoyl chloride in pyridine afforded the corresponding cinnamate esters and benzoate esters in high yields. The resulted C-arylcalix-[4]resorcinarenes and C-arylcalix[4]pyrogallol arenes were subjected to antioxidant activity test using DPPH method and showed strong activity with IC50 values of 15–80 μg/mL. In terms of the synthesized calix cinnamates, the compounds showed UV-B absorption with SPF values of 15–30 at a concentration of 25 ppm which demonstrate their potential to be applied as a UV-B protector. Furthermore, these compounds were also tested for their photostability on the UV-B region and the results showed that the compounds were still unstable under irradiation for 30 min.

The annual number of cancer deaths continues increasing every day; thus, it is urgent to search for and find active, selective, and efficient anticancer drugs as soon as possible. Among the available anticancer drugs, almost all of them contain heterocyclic moiety in their chemical structure. Xanthone is a heterocyclic compound with a dibenzo-γ-pyrone framework and well-known to have “privileged structures” for anticancer activities against several cancer cell lines. The wide anticancer activity of xanthones is produced by caspase activation, RNA binding, DNA cross-linking, as well as P-gp, kinase, aromatase, and topoisomerase inhibition. This anticancer activity depends on the type, number, and position of the attached functional groups in the xanthone skeleton. This review discusses the recent advances in the anticancer activity of xanthone derivatives, both from natural products isolation and synthesis methods, as the anticancer agent through in vitro, in vivo, and clinical assays.

The leaves Mahkota dewa (Phaleria macrocarpa (Scheff) Boerl) contains a benzophenoic glycoside (Phalerin) which is active for sun screen. Some formula and designed on the Simplex Lattice Design (SLD) method then its physical characteristics were investigated. The physical characteristics will be used to determine the optimum formula. In present study, the optimum formulation was evaluated to determine chemical stability and the in vitro SPF. The doses of partition product of P. macrocarpa was used 6%. The optimal formulation cream was determined by SLD version 9.0.1 with variety of Cetyl alcohol, mineral oil, and Tween 80. The difference of physical characteristics between experimental and software was analyzed using T-test, P= 95 %. The physical stability and in vitro SPF of the optimum formula was observed. he study exhibits that the combination of cetyl alchodol 9,71%, mineral oil 29%, and tween 80 3,29% was the optimum formula of o/w cream with the desirability test 0,924. The T-test result test shows that there is no significant difference (p>0.05) on physical characteristics between experimental and software prediction. During the storage, the viscosity, spread ability, adhesive ability, separation volume ratio of cream was relatively stable however the stability started to decline on the week IV in the extreme temperature. The SPF of the cream of the CFR, CPHR and CBZP partition were 21,32; 33,12 and 42,49, respectively.

Oral drug absorption administered is highly influenced by dissolution rate, especially for poorly and insoluble drugs. Tween 80 and polyethylene glycol 400 (PEG 400) as surfactant an increase drug solubility by means of a micelle forming mechanism. The aim of the study wasto know the influence of addition and variation of Tween 80 and PEG 400 on the absorption of piroxicam from rat intestinal lumen in situ. Piroxicam solution in pH 7.5 phosphate buffer was prepared with the same concentration in three kinds based on the addition concentration of Tween 80 and PEG 400, they were 1.0, 1.5 and 2.0 % respectively. The male rats of 130-180 grams body weight fasted were for 24 hours before treatment. The rats were anaesthetized with 5x10-3 mL/g BW 40% urethan subcutaneously. Piroxicam unabsorbed fraction was measured in a spectrophotometer at 353 nm, and then calculate Papp (Appear Permeability). The data obtained were calculated according to Kolmogorov-Smirnov and one-way ANAVA then continued by a t-test (95% confidence level). Tween 80 at 10% and 1.5% increased piroxicam absorption from the phosphate buffer pH 7.5 but decreased with Tween 80 2.0%. According to Papp, thevalues were 0.3929 cm/minute (1.5% Tween 80), 0.3507 cm/minute (1.0% Tween 80) and 0.2593 cm/minute (2.0% Tween 80) respectively. PEG 400 at 2.0 % rised piroxicam absorption from the phosphate buffer pH 7.5 but no with influence PEG 400 1.5 % concentration one way ANAVA.