Smooth Texture Research Articles

Formulation, development, and characterization of loratadine emulgel

Background: This study was to develop loratadine (LTD) emulgels to treat localized skin allergy. Method: Initially oil-in-water emulsion was prepared by 3 different types of surfactants & finally gelling agent carbopol 940 was incorporated into emulsion to produce emulgel (i.e., standard conventional method). Results: The developed formulations were characterized using various parameters including particle size (PS), zeta potential (ZP), polydispersity index (PDI), entrapment efficacy (EE), pH, extrusion efficacy, physical stability, in-vitro drug release studies, and scanning electron microscopy (SEM). PS, EE, PDI, ZP and In-vitro studies ranges between 186.25 ± 6.42 mm (LE-F4) to 395.24 ± 8.64 mm (LE-F1), 62.38 ± 0.36 % (LE-F2) to 76.48 ± 0.69 % (LE-F4), 0.276 ± 0.02 (LE-F4) to 0.652 ± 0.02 (LE-F1), 16.45 ± 2.13 mV (LE-F1) to 29.46 ± 2.78 mV (LE-F3) and 21.90 ± 0.3 % (LE-F1) to 68.30±0.9 % (LE-F4) respectively. Conclusion: Based on all physicochemical properties, LE-F4 formulation was considered to be optimized with minimum PS (186.25±6.42 nm), PDI (0.276±0.02), satisfactory positive surface charge (23.15 ± 1.89 mV) and maximum EE (76.48±0.69 %). FTIR studies were confirmed that there is no physical interaction between drug and excipients and SEM studies revealed that vesicle size was spherical with smooth texture. A significantly greater rate of drug release (i.e., 68.30 ± 0.90%) was seen in the LTD emulgels that were made with cationic surfactant (i.e., LE-F4) and found to be good spreadability and extrudability.

Nanosecond multi-passes laser surface texturing on AISI 301LN TRIP steel

Laser surface texturing is a promising technique for improving the surface properties of metals. In this study, a nanosecond pulsed laser was used to perform surface texturing on a metastable austenitic stainless steel AISI 301LN. The effects of the number of laser passes (from 1 to 1000 passes) on the surface morphology, microstructure, and mechanical properties were investigated. The results show that the depth of laser tracks increases with the number of passes due to thermal accumulation. Increasing the number of laser passes produces a rougher surface, but beyond a certain value, a smoother texture is observed. The amount of α’-martensite phase induced by the laser increases with the number of passes, producing augments in hardness. However, again, this trend changes after a certain number of laser passes, and hardening saturates and even decreases. Therefore, selecting the appropriate laser processing parameters and number of passes is essential to control the dimensions of laser tracks and thus the desired surface texture and also to achieve the level of hardening.

Chemical Quality of Chhana Spread Prepared from Cow Milk Using Herbal Coagulants

The current study was carried out at the C.S.A. University of Agriculture and Technology Kanpur's department of Animal Husbandry and Dairying (Dairy Technology). Chhana spread is a popular acid coagulated milk product has fairly high nutritional value. Its mild acidic flavour, soft body and smooth texture make it highly suitable for consumption. In the experiment, chhana spread was made with cow milk with three different coagulant agents (aonla extract, lemon extract, and ginger extract), two different water-herbal coagulant ratios (90:10 and 80:20), and two different storage periods (0 and 10 days) at 5°C refrigeration temperature. Moisture, Fat, Protein, Lactose, and Ash are five chemical characteristics. The chemical quality of chhana spread made from cow milk utilising herbal coagulants was shown to be better than other spreads after a fresh day storage period, according to the study.

Cavitation suppression and transformation of turbulence structure in the cross flow around a circular cylinder: Surface morphology and wettability effects

Passive methods of flow and cavitation control appear to offer some of the best prospects in the field of hydraulic engineering and marine applications. In this article, we aimed at an experimental examination of the effect of wall roughness/wettability on the occurrence of cavitation and turbulence structure in the cross flow around and in the wake of a circular cylinder in two characteristic regimes. For this, we used three test bodies with different surface morphologies: smooth (reference), micro-scale irregularities (rough) and regular large-scale (of the order of a millimeter) texture (finned). Using high-speed imaging to observe vapor cavities, we revealed that cavitation is noticeably suppressed by both types of roughness. Applying the method of vapor phase detection (Pervunin et al., 2021), this finding was then quantitatively confirmed through an in-depth analysis of an ensemble of instantaneous velocity fields measured by PIV, indicating that modification of wall morphology is an effective method of cavitation control. The procedure of statistical vector filtration (Heinz et al., 2004) allowed us to remove outliers from the velocity fields and, thus, calculate various turbulence characteristics, including higher-order moments (i.e., the coefficients of skewness and excess). Wall irregularities were found to significantly affect the turbulence structure of the wake flow, but the higher-order moments downstream of the modified-surface cylinders turned out to be unexpectedly insensitive to a change in the flow regime, as opposed to the smooth one. Regardless of the type of surface morphology, the influence of roughness on the mechanism of formation of large-scale vortices and their characteristics was weakened. However, it caused overall disorganization of liquid motion in the cylinder wake, thus making local flow conditions highly unsteady. In addition, this process became more chaotic with an increase in the scale of irregularities.

Identification and quantification of flavor compounds in smoked tuna fish based on GC-Orbitrap volatolomics approach

Cold smoking enhances the appeal of fish products, offering consumers a smooth texture and a delicate smoky flavor. This study aims to explore variations in the volatile profile from different exposure times during cold smoking processing (light, moderate, and full-cure) in tune samples. An innovative untargeted analytical approach, headspace solid-phase microextraction combined with gas chromatography and a hybrid quadrupole-orbitrap mass analyzer, was employed to identify 86 volatiles associated with the cold smoking process. Most of these compounds, including phenols, furan derivates, aldehydes, cyclic ketones, and different aromatic species, were found to contribute to the smoke odor. The development of a QuEChERS-based extraction and clean-up method facilitated the quantification of 25 relevant smoky markers across all smoking degrees, revealing significant concentration differences after 15 h of smoking. This research sheds light on the dynamics of cold smoking impact and its on the flavor profile and safety quality of processed fish products.

Solitons in binary compounds with stacked two-dimensional honeycomb lattices

We model the electronic properties of thin films of binary compounds with stacked layers where each layer is a two-dimensional honeycomb lattice with two atoms per unit cell. The two atoms per cell are assigned different on-site energies in order to consider six different stacking orders: ABC, ABA, AA, ABC′, ABA′, and AA′. Using a minimal tight-binding model with nearest-neighbor hopping, we consider whether a fault in the texture of on-site energies in the vertical, stacking direction supports localized states, and we find localized states within the bulk band gap for ABC, ABA, and AA′ stacking. Depending on the stacking type, parameter values, and whether the soliton is atomically sharp or a smooth texture, there are a range of different band structures including soliton bands that are either isolated or that hybridize with other states, such as surface states, and soliton bands that are either dispersive or flat, the latter yielding narrow features in the density of states. We discuss the relevance of our results to specific materials including graphene, hexagonal boron nitride, and other binary compounds. Published by the American Physical Society 2024

Location Dictates Snow Aerodynamic Roughness

We conducted an experiment comparing wind speeds and aerodynamic roughness length (z0) values over three snow surface conditions, including a flat smooth surface, a wavy smooth surface, and a wavy surface with fresh snow added, using the wind simulation tunnel at the Shinjo Cryospheric Laboratory in Shinjo, Japan. The results indicate that the measurement location impacts the computed z0 values up to a certain measurement height. When we created small (4 cm high) snow bedforms as waves with a 50 cm period, the computed z0 values varied by up to 35% based on the horizontal sampling location over the wave (furrow versus trough). These computed z0 values for the smooth snow waves were not significantly different than those for the smooth flat snow surface. Fresh snow was then blown over the snow waves. Here, for three of four horizontal sampling locations, the computed z0 values were significantly different over the fresh snow-covered waves as compared to those over the smooth snow waves. Since meteorological stations are usually established over flat land surfaces, a smooth snow surface texture may seem to be an appropriate assumption when calculating z0, but the snowpack surface can vary substantially in space and time. Therefore, the nature of the snow surface geometry should be considered variable when estimating a z0 value, especially for modeling purposes.

Exploring Cellulose Triacetate Nanofibers as Sustainable Structuring Agent for Castor Oil: Formulation Design and Rheological Insights.

Developing gelled environmentally friendly dispersions in oil media is a hot topic for many applications. This study aimed to investigate the production of electrospun cellulose triacetate (CTA) nanofibers and to explore their potential application as a thickening agent for castor oil. The key factors in the electrospinning process, including the intrinsic properties of CTA solutions in methylene chloride (DCM)/ethanol (EtOH), such us the shear viscosity, surface tension, and electrical conductivity, were systematically studied. The impact of the CTA fiber concentration and the ratio of DCM/EtOH on the rheological properties of the gel-like dispersions in castor oil was then investigated. It was found that dispersions with a non-Newtonian response and above a critical concentration (5 wt.%), corresponding to approximately 2-2.5 times the entanglement concentration, are required to produce defect-free nanofibers. The average fiber diameter increased with CTA concentration. Further, the morphology and texture of the electrospun nanofibers are influenced by the ratio of solvents used. The rheological properties of dispersions are strongly influenced by the concentration and surface properties of nanofibers, such as their smooth or porous textures, which allow their modulation. Compared to other commonly used thickeners, such as synthetic polymers and metal soaps, CTA electrospun nanofibers have a much higher oil structuring capacity. This work illustrated the potential of using CTA nanofibers as the foundation for fabricating gel-like dispersions in oil media, and thus exerting hierarchical control of rheological properties through the use of a nanoscale fabrication technique.

Volatile Compounds Content and Sensory Profile of Katuk (Sauropus androgynus) Leaves After Household Scale Heating

Katuk (Sauropus androgynus) is an indigenous Indonesian plant, and the leaves are often consumed as fresh or processed vegetables. Despite its potential, there are no reports on the volatile compounds content and sensory profile of Katuk leaves after being processed using household scale heating. Therefore, this study aimed to determine the volatile compounds content and sensory profiles of Katuk leaves after household scale heating (steaming and boiling). The extraction of constituents was carried out using the headspace-solid phase microextraction method, followed by identification with gas chromatography-mass spectroscopy. The sensory profile analysis was performed using the free choice profiling method with untrained panelists. The analysis results showed the presence of 16 volatile compounds derived from 7 groups, including aldehydes (5 compounds), alcohol (3 compounds), other components (3 compounds), ketones (2 compounds), as well as benzene, terpenoids, and esters (1 compound). The dominant compounds found in fresh Katuk leaves were alcohol [(Z)-3-hexene-1-ol]. Meanwhile, aldehydes (benzaldehyde, nonanal, benzeneacetaldehyde, and (E)-2-pentenal) and alcohol (1-Heptanol and Nerolidol) were dominant in the steamed samples, with benzene (naphthalene) being predominantly found in the boiled samples. The sensory profile analysis results showed that fresh Katuk leaves had a grassy and earthy aroma with a grassy flavor, while the boiled samples had a smooth and juicy texture. The dominant attributes found in steamed Katuk leaves included moist, tender, and tasteless. Based on these findings, household scale heating could modify the composition of volatile compounds, thereby affecting the sensory profile. The results obtained were expected to serve as a foundation for the processing of Katuk leaves at both industry and household levels.

K+ Ions Crosslinked Kappa-Carrageenan/Methylene Blue Composite Film. Part-1: Synthesis, Characterization and Application as Controlled Release Device for Photodynamic Therapy Application

K+ ions crosslinked (KC/MB) Methylene blue photosensitizer loaded composite film is prepared for photodynamic therapy (PDT) application as Photosensitizer released by composite film can conveniently be controlled by using different quantities of K+ ions and this application is based on dynamic interaction between light with suitable wavelength, photosensitizer and molecular oxygen, promoting the death of the target tissue or bacterial cells. In this work, the Methylene Blue (MB) loaded Carrageenan polymeric film was prepared by the method of direct addition of MB into pre-polymerization solution of Carrageenan (KC). This composite film and plain KC film were characterized by FTIR, XRD and SEM analysis. The characteristic peaks of MB photosensitizer were obtained in FTIR spectrum of composite film. The composite film KC/MB shows prominence of amorphous nature may be due to MB is present in very small quantity. The SEM analysis reveals that the composite film (KC/MB) having much more smooth surface texture throughout the film. Finally, the result of effect of variation in degree of crosslinking on amount of MB release is, as the amount of K+ ions used to crosslink the film increases, MB release decreases.

CFGPFSR: A Generative Method Combining Facial and GAN Priors for Face Super-Resolution

In recent years, facial prior has been widely applied to enhance the quality of super-resolution (SR) facial images in face super-resolution (FSR) methods based on deep learning. However, most of the existing facial prior-based FSR methods have insufficient attention to local texture details, which can cause the generated SR facial images with overly smooth and unrealistic texture details, and show obvious artifacts under large magnification. With the help of GAN prior, recent advances can produce excellent results in terms of fidelity and realness. A generative framework for FSR is proposed in this work, which combines GAN and facial prior, termed CFGPFSR. Firstly, we pre-train a face StyleGAN2 and a face parsing network (FPN) that can generate decent parsing maps, in which the proposed CFGPFSR exploits rich and varied priors encapsulated in the face StyleGAN2 (GAN prior) and face parsing maps extracted from the FPN (facial prior) for FSR. Moreover, we introduce the Channel-Split Spatial Feature Transform (CS-SFT) method to further improve FSR performance. GAN and facial priors are introduced into the FSR process through the designed CS-SFT layers so that SR facial images obtain a promising balance between fidelity and realness. Unlike GAN inversion methods which necessitate costly image optimization at runtime, the proposed CFGPFSR can jointly recover facial details by only utilizing one forward pass. Experimental results on synthetic and real images indicate that the proposed CFGPFSR obtains remarkable performance in 16 × SR task, and some of its metrics such as peak signal to noise ratio (PSNR) and structural similarity (SSIM) are higher than that of the comparison methods. Meanwhile, it shows impressive results in reconstructing high-quality facial images.

Identifikasi Warna Adonan Kerupuk Labusiam Menggunakan Sensor Warna Berbasis IoT

Chayote (Sechium edule) is a fruit vegetable with nutritional content, which rich in minerals and vitamins. In West Sumatra, precisely in Tanah Datar Regency, Salimpauang District, chayote has become a household product, not only is it processed into vegetables, but chayote is also processed into snacks such as chayote chips. The process of processing chayote is generally still carried out conventionally by the Salimpauang community. To overcome the problem of automatic and remote monitoring of equipment during dough mixing by applying the IoT method. This monitoring system integrated with IoT was created using a NodeMCU 8266 microcontroller device and a TCS3200 color sensor. The TCS3200 color sensor is used to monitor color changes in chayote dough. Apart from that, this sensor is also used to determine differences in the evenness of the dough color. The RGB color of the dough so that the average value for a smooth texture is R>53, G>92 and B>42.

Kelayakan Masker Tradisional Biji Pepaya Dan Ketan Hitam Untuk Perawatan Kulit Wajah Kering

Skin problems, especially on the face, are things that are considered to reduce appearance and have to spend a lot of money even though treating the face with natural ingredients is safer because it does not contain a mixture of chemicals. The natural ingredients in question are: Papaya seeds contain papain enzymes that can prevent wrinkles, shrink pores and moisturize the skin. Black sticky rice in addition to being a food ingredient can also be beneficial for skin beauty which can slow down premature aging, because it contains high antioxidants and anthocyanins, vitamin E and high fiber. This study aims to find out how the physical properties of papaya and black glutinous rice seed masks include color, aroma, texture, and preferences of panelists. This research is an experimental research with the object of research on papaya seed masks and black sticky rice. This type of research is quantitative using experimental methods.The data collection method used observation and testing of panelists' preferences for color, aroma, texture, adhesion of 2 makeup and beauty lecturers, 10 female students within the scope of UNP. The results showed that there was an influence of the use of papaya seed masks and black glutinous rice on dry skin care and had gray color criteria from mixing papaya seed powder and black glutinous rice, fragrant and delicious aroma, very smooth texture, moist, good elasticity felt tight and chewy.

Grinding surface and subsurface stress load of nickel-based single crystal superalloy DD5

Nickel-based single crystal superalloys have broad application prospects in the aerospace field. Their excellent physical properties enable the workpiece to serve in complex environments for a long time, and are often used in the most complex stress and the worst working conditions. However, the damage caused by mechanical material removal deteriorates the wafer surface flatness and die strength, while its surface and subsurface formation principle has yet to be revealed. This study aims to analyze the influence of abrasive particles on the load of the workpiece during machining was scrutinized through the lens of stress tensor, yield performance, and third invariant. The results indicate that, a substantial stress load is exerted on the front end of the abrasive grain, leading to the yield deformation of the workpiece. Conversely, the stress load at the bottom of the abrasive grain is comparatively lower, resulting in tensile deformation and the formation of a discernible plastic damage layer. To delve deeper into the workpiece's damage phenomenon, this study conducts a comparative analysis from the standpoints of chips, surface morphology, and subsurface characteristics of DD5. Experimental results indicate that the chips on the contact surface exhibits a relatively smooth texture, while the grinding surface manifests grooves of varying depths. Concurrently, subsurface analysis reveals the presence of slip deformation and elemental flow. This investigation elucidates the intricate interplay between the grinding process and subsurface loading, offering valuable insights to enhance the quality and precision of nickel-based single-crystal superalloy workpiece manufacturing.

Graphene oxide composite as a novel corrosion inhibitor for N80 steel in 15 % HCl: experimental and quantum chemical examinations

Abstract Graphene oxide (GO) consists of many functional groups containing oxygen that helps in its chemical modifications. Thus, we have explored the synthesis, and corrosion inhibition application of n-butylamine (nBA) functionalized GO, i.e., GO-nBA for N80 steel in the acidizing environment (15 % HCl). NMR and TEM characterized the GO-nBA. The performance of GO-nBA was evaluated via chemical and electrochemicals methods that are supported by surface examination techniques. The PDP results supports the mixed nature of protection ability of GO-nBA. Additionally, the excellency of GO-nBA is confirmed by the value of 93.93 % efficiency. The surface study furthermore represents smooth texture with the addition of GO-nBA. The computational analysis reveals excellent inhibitive performance of GO-nBA.

Comparison of Lowenstein Jensen Media and Ogawa Media Usage for Viability Test of BCG Vaccine Pasteur P11732 and Russian (Moscow) - 384 sub-strains.

The BCG vaccines on the market have employed a Mycobacterium bovis (M. bovis) sub-strains derived from the initial strain. To date, there has been no recommendation regarding the sub-strains with the highest effectiveness when administered to humans. Because it remains the standard for Tuberculosis treatment, the quality of the BCG vaccine must be verified. The viability test is one of the parameters for BCG vaccine quality control. The culture method has become the gold standard for viability testing with various testing media. The present study aimed to evaluate the performance of Lowenstein Jensen (LJ) and Ogawa media for the viability test of Pasteur 1173P2 and Russian (Moscow) - 384 sub-strains of M. bovis in the BCG vaccine. The number of culturable particles of each sub-strain in the BCG vaccine was estimated and statistically evaluated using the t-test. The colonies of the Pasteur 1173P2 have characteristics; tended to clump on both mediums with tiny, rough, and pale yellow/cream colors. Although the colony character of the Russian (Moscow) - 384 generally has similar feature, it did not cluster and had a smooth texture. In terms of growth rate, LJ and Ogawa media performed similarly for Pasteur 1173P2 and Russian (Moscow) - 384 sub-strains. Maximum growth is reached by the fifth week. The culturable particles of Pasteur P1173P2 sub-strains did not differ between mediums. Whereas the growth of the Russian (Moscow) - 384 sub-strains was statistically better on Ogawa media. The results of this study reveal that the performance of the media used for determining the number of culturable particles is based on the sub-strains of M. bovis present in the BCG vaccine.

Antibacterial properties of marine algae incorporated polylactide acid membranes as an alternative to clinically applied different collagen membranes

The reconstruction of bony defects in the alveolar crest poses challenges in dental practice. Guided tissue regeneration (GTR) and guided bone regeneration (GBR) procedures utilize barriers to promote bone regeneration and prevent epithelial growth. This study focuses on evaluating the antibacterial properties of marine algae-polylactic acid (PLA) composite membranes compared to commercially available collagen membranes. Marine algae (Corallina elongata, Galaxaura oblongata, Cystoseira compressa, Saragassum vulgare, and Stypopodium schimperi) were processed into powders and blended with PLA to fabricate composite membranes. Cytocompatibility assays using human periodontal ligament fibroblasts (n = 3) were performed to evaluate biocompatibility. Antibacterial effects were assessed through colony-forming units (CFU) and scanning electron microscopy (SEM) analysis of bacterial colonization on the membranes. The cytocompatibility assays demonstrated suitable biocompatibility of all marine algae-PLA composite membranes with human periodontal ligament fibroblasts. Antibacterial assessment revealed that Sargassum vulgare-PLA membranes exhibited the highest resistance to bacterial colonization, followed by Galaxaura oblongata-PLA and Cystoseira compressa-PLA membranes. SEM analysis confirmed these findings and revealed smooth surface textures for the marine algae-PLA membranes compared to the fibrous and porous structures of collagen membranes. Marine algae-PLA composite membranes show promising antibacterial properties and cytocompatibility for guided bone and tissue regeneration applications. Sargassum vulgare-PLA membranes demonstrated the highest resistance against bacterial colonization. These findings suggest that marine algae-PLA composite membranes could serve as effective biomaterials for infection control and tissue regeneration. Further in vivo validation and investigation of biodegradation properties are necessary to explore their clinical potential.Graphical

Highly uniform microspheres of broadband near-infrared-emitting Ba(Hf1-xCrx)O3 perovskite phosphor

Chromium activated BaHfO3 (BHOC) perovskite phosphor with varying amount of Cr3+ ion (1–10 %) was prepared by hydrothermal synthesis and was characterized systematically using x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), positron annhilation lifetime spectroscopy (PALS) and time resolved photoluminescence (TRPL). FESEM show the formation of highly uniform microsphere of BHOC with very smooth surface texture. XPS showed the stabilization of chromium in +3 oxidation states, formation of oxygen vacancies and improved crystallinity in 6 % doped in BHOC sample. Under 500 nm excitation, BHOC perovskite demonstrated a very broad near infrared (NIR) emission band (700–1050 nm) centered at 815 nm with a full width at half-maximum (FWHM) of ∼150 nm and a wide absorption band, suggesting its potential application as NIR phosphor. The fraction of positrons getting trapped in the defects and vacancy clusters decreased with increase in Cr3+ doping and showed minima at 6.0 % doping and this sample also showed highest NIR light emission.

Study on the characterization of fly ash and physicochemical properties of soil, water for the potential sustainable agriculture use – A farmer's perspectives

AbstractIn this study, suitable fly ash (FA) was selected for agricultural purposes according to combined characteristic soils and water. The two FAs from the Tuticorin Thermal Power Plant (FA-TTPP) and Sripathy Thermal Power Station (FA-STPS) and physio-chemical analysis of soil and water samples from the five different sites (1–5) in Viruthunagar district, Tamilnadu is made. X-ray diffraction analysis (XRD) of FAs showed that quartz (SiO2), mullite (Al6Si2O), and hematite (Fe2O3) are available that enhance plant growth. The Fourier-transform infrared spectroscopy (FTIR) results confirmed that Si–O–Si, Al–O–Si, HO–OH, and OH bonding present in the FAs support to meet the required plant nutrients in the soil. Scanning electron microscopy analysis (SEM) of FA-TTPP revealed compact microspheres with regular, smooth, and irregular textures while FA-STPS showed glassy, unshaped fragments that may help to improve the texture of field sites. Energy dispersive X-ray spectroscopy (EDX) analysis found that FAs have essential macro- and micronutrients to minimize the soil nutrient and thus help to improve plant productivity. Sites 1 and 2 have acidic soil conditions and are recommended to use both FAs since they are alkaline in nature. FA can improve the water-holding capacity of sandy loam soils of sites 2, 3, and 4 due to the presence of fineness content in FA. Site- 1 has iron deficiency which can be remediated with rich iron FA-STPS. It is recommended to use optimum FA based on soil and water to improve agricultural efficiency.

Karakteristik Kimia dan Sensori Brownies Ubi Jalar Putih dengan Penambahan Tepung Kacang Hijau

Brownies are a kind of cake that is dark brown in color, has a smooth texture and special taste, and does not require baking powder. White sweet potatoes and mung beans can be used as raw material for brownies, where white sweet potatoes have a fairly high carbohydrate content while mung beans have a high protein content. The purpose of this study was to obtain the effect of white sweet potato and mung bean flour on the chemical and sensory characteristics of brownies and to obtain the best ratio. The treatment in the study consisted of five treatments and three replications and used a CDR (Completely Randomized Design). The ratios of white sweet potato and mung bean flour, namely 100:0, 90:10, 80:20, 70:30 and 60:40. The results of the research on the selected treatment were 80% white sweet potato flour : 20% mung bean flour, which had moisture content of 30.44%, ash content of 0.96%, fat content of 20.31%, protein content of 12.42%, carbohydrate content of 35.88%, and fiber content of 6.62%. The descriptive test showed that the brownies had a brown color, mung beans and sweet potato flavor, mung beans and sweet potato taste, and soft texture.