Milk Bottles Research Articles

Lactose oxidase: Enzymatic control of Pseudomonas to delay age gelation in UHT milk

Shelf-stable milk is consumed worldwide, and this market is expected to continue growing. One quality challenge for UHT milk is age gelation during shelf life, which is in part caused by bacterial heat-stable proteases (HSP) synthesized during the raw milk storage period before heat processing. Some Pseudomonas spp. are HSP producers, and their ability to grow well at refrigeration temperature make them important spoilage organisms for UHT processors to control. Previous studies have shown that lactose oxidase (LO), a natural and commercially available enzyme that produces hydrogen peroxide and lactobionic acid from lactose, can control bacterial growth in raw milk. In this research, we investigated the ability of LO to control HSP producer outgrowth, and thus delay age gelation in UHT milk. Six strains of Pseudomonas spp. were selected based on their ability to synthesize HSP and used as a cocktail to inoculate both raw and sterile (UHT) milk at a level of 1 × 105 cfu/mL. Groups were treated with and without LO, stored for 4 d at 6°C, and monitored for cell count and pH. Additionally, a sample from each was tested for HSP activity via particle size analysis (average effective diameter at 90° angle and 658 nm wavelength) and visual inspection on each day of the storage period. The HSP activity results were contrasted using Tukey's HSD test, which showed that in UHT milk, a LO treatment (0.12 g/L) effectively prevented gelation as compared with the control. In raw milk, however, a concentration of 0.24 g/L of LO was needed to obtain a similar effect. This test was scaled up to 19-L pilot plant batches of raw milk where they were challenged with Pseudomonas cocktail, treated with LO for 3 d, and then UHT processed. Resulting UHT milk bottles were monitored for gelation. Significant differences in particle size between the LO-treated samples and the control were observed as early as 1 mo after processing, and gelation was not detected in the LO-treated samples through 6 mo of storage. These results demonstrated that LO can be used to delay age gelation in UHT milk induced by HSP-producing Pseudomonas spp., representing an opportunity to improve quality and reduce postproduction losses in the shelf-stable milk market sector.

The Development of Scene Semantics: First ERP Indications for the Processing of Semantic Object-Scene Inconsistencies in 24-Month-Olds

Finding a bottle of milk in the bathroom would probably be quite surprising to most of us. Such a surprised reaction is driven by our strong expectations, learned through experience, that a bottle of milk belongs in the kitchen. Our environment is not randomly organized but governed by regularities that allow us to predict what objects can be found in which types of scene. These scene semantics are thought to play an important role in the recognition of objects. But when during development are the semantic predictions so far implemented that such scene-object inconsistencies would lead to semantic processing difficulties? Here we investigated how toddlers perceive their environments, and what expectations govern their attention and perception. To this aim, we used a purely visual paradigm in an ERP experiment and presented 24-month-olds with familiar scenes in which either a semantically consistent or an inconsistent object would appear. The scene-inconsistency effect has been previously studied in adults by means of the N400, a neural marker responding to semantic inconsistencies across many types of stimuli. Our results show that semantic object-scene inconsistencies indeed elicited an enhanced N400 over the left anterior brain region between 750 and 1150 ms post stimulus onset. This modulation of the N400 marker provides first indications that by the age of two toddlers have already established their scene semantics allowing them to detect a purely visual, semantic object-scene inconsistency. Our data suggest the presence of specific semantic knowledge regarding what objects occur in a certain scene category.

Pemanfaatkan Potensi Lokal Melalui Pembuatan Susu Jagung Guna Mencegah Stunting Pada Desa Gejugan

Gejugan Village is one of the villages in Probolinggo district on the north coast. Gejugan Village is in the west bordering Klaseman Village and Karangpranti Village, Pajarakan District. Gejugan village has local potential that can be developed from their agricultural produce, namely corn. Corn is an alternative food source that contains many nutrients. But the people here still don't have the knowledge to be able to use it. The Socialization Activity for Making SUJU (Corn Milk) to Prevent Stunting and Utilizing Local Potential is expected to provide more knowledge to the Gejugan community in utilizing existing local potential, especially processing corn into corn milk. Besides having good nutrition, corn milk also has more value in the economy. If it is processed properly and properly, this product can be sold in the market. The socialization of making corn milk was attended by 25 residents of Gejugan Village. Material for making corn milk was given by providing materials and hands-on practice during the event. Participants in the socialization of making corn milk enthusiastically listened to and practiced directly making corn milk during the socialization process. From the results of the socialization, the practiced corn milk resulted in 6 bottles of corn milk measuring 360 ml. Participants listened well and the material presented was well received by all participants present.
 Keywords: Local Potential, Corn Milk, Stunting

Pemanfaatkan Potensi Lokal Melalui Pembuatan Susu Jagung Guna Mencegah Stunting Pada Desa Gejugan

Gejugan Village is one of the villages in Probolinggo district on the north coast. Gejugan Village is in the west bordering Klaseman Village and Karangpranti Village, Pajarakan District. Gejugan village has local potential that can be developed from their agricultural produce, namely corn. Corn is an alternative food source that contains many nutrients. But the people here still don't have the knowledge to be able to use it. The Socialization Activity for Making SUJU (Corn Milk) to Prevent Stunting and Utilizing Local Potential is expected to provide more knowledge to the Gejugan community in utilizing existing local potential, especially processing corn into corn milk. Besides having good nutrition, corn milk also has more value in the economy. If it is processed properly and properly, this product can be sold in the market. The socialization of making corn milk was attended by 25 residents of Gejugan Village. Material for making corn milk was given by providing materials and hands-on practice during the event. Participants in the socialization of making corn milk enthusiastically listened to and practiced directly making corn milk during the socialization process. From the results of the socialization, the practiced corn milk resulted in 6 bottles of corn milk measuring 360 ml. Participants listened well and the material presented was well received by all participants present.
 Keywords: Local Potential, Corn Milk, Stunting

Our Town, by Abigail Adams

Our Town, by Abigail Adams

Our Town, by Ellen McDougall

Our Town, by Ellen McDougall

Relationship between CD14 and IgA Levels with the Early Childhood Caries Event Children Age 3–5 Years

BACKGROUND: Early childhood caries (ECC) is a problem in the field of dental health that occurs in infants and toddlers around the world.
 AIM: This study aims to relationship between CD14 and IgA levels with the ECC event children age 3–5 years.
 MATERIALS AND METHODS: This type of research is an observational cross-sectional comparative design between children with caries and non-caries. Samples are children aged 3–5 years with a history of consuming bottle milk. The number of samples was 28 people for each group (caries and non-caries) so that the total sample was 56 people. The CD14 and IgA levels measured using the ELISA method. The statistical test used is an independent t-test. p < 0.05 was said to be statistically significant.
 RESULTS: The results showed that the mean of CD14 levels was higher in the group caries than in the non-caries, while IgA levels were higher in the group non-caries than in the caries group.
 CONCLUSION: This study concluded that early caries childhood caries event children age 3–5 years increased the levels of IgA and decreased CD14 levels.

Determination of phthalates in bottled milk by a modified nano adsorbent: Presence, effects of fat and storage time, and implications for human health

Phthalate acid esters (PAEs) have attracted increasing attention because of their toxicity and ubiquity. In the present study, the level of five common PAEs in plastic bottled milk were determined using a novel adsorbent (a combination of multi-walled carbon nanotubes and iron oxide (Fe3O4) nanoparticles), and the PAEs’ associated potential risks to human were also assessed. The investigated compounds were dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), di(2-ethylhexyl) phthalate (DEHP) and di-n-octyl phthalate (D-nOP). The good repeatability, high sensitivity, and short time extraction made this method an effective one for analysis of PAEs in milk. Twenty-four plastic bottled milk samples from 11 commercial brands were chosen according to their fat content and analyzed for target PAEs under different storage times (1 and four days upon purchased). The results revealed that the mean levels of PAEs were as follows: DnOP > DEHP > DBP > DEP > DMP. The results of correlation analysis and principal component (PC) biplot analysis revealed that DnOP and DEHP in the analyzed milk samples had common sources and/or similar chemical behavior. Moreover, fat content had a significant effect on the PAEs level of milk. While no significant correlation was obtained between the level of PAEs and the storage time. The estimated daily intake (EDI) of PAEs from bottled milk consumption were below the tolerable daily intake (TDI) values. Hence, daily consumption of bottled milk should not pose non-carcinogenic adverse health effects to humans. Moreover, the estradiol risk of bottled milk was low.

A descriptive analysis of reasons for early childhood caries among a selected group of Sri Lankan preschool children

Introduction: Dental caries is a microbial disease of the calcified tissues of the teeth. When a child has one or more decayed missing (due to caries) or filled tooth surfaces (DMFT) in any primary teeth by 71 months or younger it is defined as early childhood caries (ECC). Objectives: To analyse the dietary habits and oral hygienic practices among a selected group of preschool children who were diagnosed to suffer from ECC, using their primary caregiver responses. Method: A cross sectional study was conducted among primary caregivers of children 1-5 years old with proven dental caries who were referred to the Dental Institute Maharamaga from September to December 2018. Primary caregivers of mentally retarded children and caregivers who were not familiar with the child’s routine were excluded. Results:Total number of primary caregivers involved in the study was 213. Among them 194 (91%) were mothers. Among the children included in the study, 104 (51.2%) were girls. The children had a mean age of 42 months with the majority belonging to the 49-60 month age group. Majority (60%) of children were introduced to use a toothbrush between 1-2 years of age and only 2 (0.9%) started to use a toothbrush after 2 years of age. The majority (86.9%) of caregivers stated that their children do tooth brushing twice a day and 85.9% stated that they themselves brush their child’s teeth. The majority (98.1%) of caregivers stated that they use toothpaste to brush their child’s teeth and 88% stated that the toothpaste they use contains fluoride. Ninety seven (45.5%) caregivers were still breast feeding at the time of the study and of them 41(42.3%) breast fed during sleep. Only 52 (24.4%) children were bottle fed. Of the carers of bottle-fed children, 56% stated that their children bottle-fed during bedtime. Thirty two (61.5%) caregivers of bottle-fed children used to add sugar to child’s milk bottle. Furthermore, 32 (61.5%) caregivers had not practised mouth washing after bottle-feeding. Conclusions: In this study at the Dental Institute Maharamaga, 213 children had proven ECC despite the majority of caregivers introducing their children to the tooth brush between 1-2 years of age, themselves brushing their children’s teeth twice a day and using toothpaste containing fluoride. Almost all children consumed sugary food items, such as biscuits and sugar containing milk products more than once daily. Two other possible reasons for the high rate of ECC in this study were not washing the children’s mouths after they consumed sugary food and breast feeding during sleep. Sri Lanka Journal of Child Health, 2020; 49(3): 246-250

Plastic or glass: a new environmental assessment with a marine litter indicator for the comparison of pasteurized milk bottles

PurposeToday plastic is the most used material for food packaging, but its incorrect disposal is creating environmental issues to oceans, soil and air. Someone believes that the solution is to ban plastic and substitute it with glass packaging. Is it the right choice? This study aims at comparing the environmental impact of bottles made of PET, R-PET, non-returnable glass and returnable glass in order to understand which is the most environmental friendly packaging solution.MethodsA literature analysis on the environmental impact of glass and PET bottles is carried out, taking into account their production, transport and disposal phase. Then, an environmental assessment of PET, R-PET, glass and returnable glass bottles, used to package 1 l of pasteurized milk, has been carried out using the life cycle assessment methodology and a new indicator. Inventory data were provided by an important milk processing and packaging factory located in Italy. Results were estimated using some relevant impact categories of the ReCiPe 2016 MidPoint (H) method, then a marine litter indicator (MLI) has been proposed in order to evaluate the polluting potential of milk bottles dispersed into the Mediterranean Sea.Results and discussionLCA results show that R-PET bottle gives the lowest contribution to global warming, stratospheric ozone depletion, terrestrial acidification, fossil resource scarcity, water consumption and human carcinogenic toxicity, followed by PET bottle, returnable glass bottle, and finally non-returnable glass bottle. Glass is the worst packaging option because of high energy demand in the bottle production and its weight and in the transport phase. Some improvements can be obtained with returnable glass, but even if we consider that a bottle could be reused eight times, results are not comparable to the PET or R-PET bottles used only once. However, according to the MLI, returnable glass bottles become the first option, because a lot of plastic bottles could potentially be dispersed into the sea.ConclusionsThe substitution of plastic with glass does not help to reduce the GWP and others LCI categories, while could contribute to reduce the marine litter: overall it is important to dispose correctly packaging materials, investing in recycling and reusing. In particular, great improvements can be obtained using bottles made with recycled materials, as R-PET. In conclusion, it is necessary to disadvantage waste dispersion, giving incentives to returnable packaging and raising people awareness of environmental problems.

Pyrolysis of milk bottle wastes of polypropylene and high density polyethylene: determination of kinetic and thermodynamic parameters

ABSTRACT In present study, non-isothermal thermal degradation of three milk bottle wastes including transparent polypropylene (tPP), nontransparent polypropylene (ntPP) and high-density polyethylene (mHDPE) has been conducted in inert nitrogen atmosphere. Thermogravimetric analysis (TGA) data under different heating rates of 5, 7.5, 15 and 20 K min−1 are collected for kinetic and thermodynamic analysis. Pyrolysis results indicate that tPP and ntPP seem to less thermally stable while mHDPE is more thermally stable. The apparent activation energies for degradation process of three wastes are calculated with several isoconversional methods and have demonstrated negligible dependence on the mass conversion, and the activation energy averaged is the highest for mHDPE, followed by ntPP and finally tPP. Furthermore, the pyrolysis reaction mechanism has been scanned by a new way of the master-plots method combined with differential composite method and the F0.1, F0.4 and F0.6 reaction models are found to be the most suitable for describing the pyrolysis of tPP, ntPP and mHDPE, respectively. Our work may provide some insights for how to better describe experimental results with theoretical predications and necessary information for the design of potential pyrolysis reactors.

RECYCLED- BOTTLE ARCH AS A PROTOTYPE TO PRACTICE SUSTAINABILITY THROUGH PBL

This paper is a brief description of attempts of high school students during their experience to gain knowledge about environmental sustainability through an architectural project in Iran. 
 Students are concerned with the waste materials produced by households and tried to draw the other students’ attention to this issue with their project. Waste milk bottles were used as the primary material of their final project. The result of the project is a 150-centimeter-high and 160-centimeter-span arch, which had been constructed with the use of used milk bottles.

Bisphenol A, the Villain of Plastics: Chemistry Teaching to Raise Students’ Awareness in a High School in Southeastern Brazil

Traditional expository classes, whose only didactic resources are the blackboard and the teacher’s talk, are neither the only alternative nor the most productive one to teach Chemistry. Keeping it in mind, this study aimed at addressing one of several topics in Chemistry – plastics – by problematizing everyday situations, since the composition of some plastic packaging includes harmful compounds, such as bisphenol A (BPA). Specifically, BPA is an industrial chemical product which has been broadly used in its monomeric form to yield epoxy resins and polycarbonate plastics. Since it has excellent physical and chemical characteristics, it has been used as lining of metal packaging, besides the manufacturing of milk bottles and household items. However, BPA, even at low concentrations, may cause infertility, nervous system disorders, diabetes, cancer, obesity, precocious puberty and cardiovascular diseases. In order to make Chemistry teaching more attractive, this study aimed at informing students about effects of BPA at the Instituto Federal do Triângulo Mineiro - Campus Uberlândia Centro (IFTM - UDICENTRO), a high school located in Uberlândia, Minas Gerais (MG) state, Brazil. Thus, questionnaire about BPA was applied to the students and the theme and the adverse effects of this compound were discussed from a chemical point of view. Results of the study and both students’ learning and awareness-raising were considered satisfactory. Teaching which includes students’ reality is capable of improving their comprehension and make Chemistry classes more attractive and pleasant. DOI: http://dx.doi.org/10.17807/orbital.v12i2.1448

Towards online specific recognition and sensitive analysis of bisphenol A by using AuNPs@aptamer hybrid-silica affinity monolithic column with LC-MS

Highly specific sample pretreatment for the sensitive detection of trace bisphenol A (BPA) in compliacted samples is critical. Herein, a new protocol towards online specific recognition and sensitive detection of BPA was proposed by using Aptamer@AuNPs-modified affinity monolith coupled with LC-MS. Optimization of polymerization conditions and characterization such as the morphology, energy spectrum, mechanical stability, aptamer coverage density and specific performance of the affinity monolith were studied. Nano-gold particles (AuNPs) densely distributed on the rigid hybrid-silica substrates, and an unusually high aptamer coverage density reached 3388 pmol/μL, which was favorable to fulfill the effective identification of BPA with high selectivity and inhibit the interference of analogs including BPB and BPC. A highly sensitive recognition of BPA was obtained with the limit of detection (LOD) as low as 0.02 ng/mL. Applied to dairy milk products and serum samples, trace BPA could be sensitive detected by this strategy, while the poor response was achieved by using traditional non-specific SPE column for sample pretreatment. Satisfactory recoveries of fortified BPA were measured as 97.45 ± 2.24%–98.03 ± 4.36% (n = 3) in powdered infant formulas, 96.64 ± 3.37% ~ 99.42 ± 3.22% (n = 3) in bottled milk, 94.69 ± 2.15% ~ 100.96 ± 1.94% (n = 3) in boxed milk, and 93.71 ± 1.53% ~ 96.73 ± 2.56% (n = 3) in children serum samples, respectively. This protocol lights a new access to online specific identification of trace BPA from complex matrix with good detection sensitivity by using aptamer-affinity monolithic column.

Storage of pasteurized milk in clear PET bottles combined with light exposure on a retail display case: A possible strategy to define the shelf life and support a recyclable packaging

The stability of whole pasteurized milk packaged in clear PET bottles was studied throughout 13-days storage in the dark, but including, at specific times, light exposure of 6, 12 or 18 h to simulate conditions potentially occurring in refrigerated display counters. The aim was to investigate the effects of light exposure when overlapping the unavoidable endogenous modifications in pasteurized milk during storage. Dissolved oxygen, riboflavin and other flavins, proteolysis products, volatile compounds, and sensory characteristics were evaluated. Besides the expected progress of proteolysis occurring during storage, light negatively affected milk flavour especially after longer exposure times. The development of “mushroom” flavor related to the increase of volatile 2,3 octanedione was the most characterizing modification. Gathered data were considered in view of providing the background knowledge for the control of light exposure conditions on a retail display, thus supporting the shelf life extension of pasteurized milk in a fully recyclable packaging.

PREVALENCE OF BREAST FEEDING IN THE WORKING WOMEN OF DISTRICT MARDAN

Objectives: Finding out how often working women breastfeed was the main goal of my research. Second, the impactof employment on breastfeeding was noted. Third, it was assessed if working women were using bottles.Methodology: Cross-sectional research was done in this study from June 2015 to august 2015. The MardanMedical Complex’s outpatient clinics and wards served as the study’s working environment. The research took twomonths to complete. The participants gave their written agreement before the researchers filled out questionnaires basedon the information provided by the subjects. SPSS version 16 was used to input, analyse, and show the survey data astabular, bar, and pie charts. A thorough debate was conducted based on this evidence, and conclusions were reached.Results: 100% of our sample were exclusively breastfed for 6 months, and 75% of them were found to be nursing.The employment position of women has been identified as the primary cause of this early cessation.In the first week,only few females began bottle feeding.However, the prevalence of bottle feeding rose in the weeks that followed. Thepreference for bottle milk over breast milk was 23%. Again, the work was the cause, however some of them preferedbottle feeding since they were more familiar with it.Conclusion: Although breastfeeding was common among working women, it was not possible to breastfeed exclusivelyfor the recommended six months. Therefore, it is important to encourage working women to breastfeed at work or totake lactation breaks so that they can do so.Key words: breastfeeding practices, bottle feeding, breastfeeding prevalence.

Oleamide, a Bioactive Compound, Unwittingly Introduced into the Human Body through Some Plastic Food/Beverages and Medicine Containers.

The purpose of the study was to investigate the migration of oleamide, a polymer lubricant, and a bioactive compound, from various plastic, marketed containers for food/beverages and medicines into polymer contact liquid. Methanol, food/medicine simulants or real samples were used to extract polymer leachables and extractables. Migrated oleamide into polymer contact liquids was determined by ultra-high performance liquid chromatography coupled to mass spectrometry (UHPLC-MS). The concentration of oleamide in the extracts of medicinal and insulin syringes was 7351 ng mL−1 and 21,984 ng mL−1, respectively. The leachates of intravenous (i.v.) infusion bottle, medicinal and insulin syringes contained 17 ng mL−1, 12 ng mL−1 and 152 ng mL−1, respectively. Oleamide in the extracts of dummies ranged from 30 to 39 ng mL−1, while in the leachates of baby bottles, from 12 to 23 ng mL−1. Leachates of soft drink bottles contained from 6 to 15 ng mL−1 oleamide, milk bottles from 3 to 9 ng mL−1, liquid yogurt bottles 17 ng mL−1 and water bottles from 11 to 18 ng mL−1. Bottled real matrices of oil and milk contained oleamide in the range from 217 to 293 ng mL−1. Moreover, the source of migrated oleamide (e.g., containers, caps, other parts) was identified. Oleamide is listed in the current EU regulations without a specific migration limit. Accordingly, these values are considered of no concern, unless future toxicological studies prove the opposite.

ThreThree-Dimensional Paladar Shutter Fisurated in Pediatric Patiente-Dimensional Paladar Shutter Fisurated in Pediatric Patient

Palatal fissure is one of the congenital craniofacial malformations with the highest incidence worldwide, which compromises both the aesthetic and functional part, thus altering the vital functions: chewing, phonation, hearing and swallowing. The literature indicates that this anomaly occurs in 25% individually and 50% when associated with the cleft lip. One of the characteristics of these patients is the presence of notable malnutrition, caused by difficulty feeding, because they cannot exert enough pressure to suck breast or bottle milk; In addition, oral-nasal communication will lead to food entering the nostrils, causing regurgitation until possible bronchial aspiration. Given this problem, it is necessary to use an acrylic device capable of momentarily sealing the palatal fissure, in order to prevent the diversion of food and restore the sucking reflex in the infant. The objective of this study is to determine the effectiveness of the Three-dimensional Cleft Palate Shutter in a pediatric patient who attended the National Foundation of Maxillofacial Rehabilitation (FUNARMAF) in June 2019. The methodological design corresponds to an analytical – synthetic study since it was based on the analysis of a single case of a 5-month-old female patient, with a Unilateral Palatal Fissure (right), giving her the treatment. Results show that a closure of the oral-nasal communication was obtained, re-establishing the suction reflex. In all, it was observed that the use of this device is effective in patients with lip-palatal fissure since it acts as an adjuvant in breastfeeding and feeding the baby.

Multiple solid phase microextraction combined with ambient mass spectrometry for rapid and sensitive detection of trace chemical compounds in aqueous solution

Multiple solid phase microextraction (mSPME) combined with thermal desorption-electrospray ionization/mass spectrometry (TD-ESI/MS) was developed to rapidly characterize trace analytes in aqueous solution. A number of commercial available SPME fibers (from 2 to 10 fibers) were simultaneously used for extracting the analytes in solution. The fibers were then bundled together on a holder and subjected for the ambient mass spectrometric analysis. Good linearity for calibration (R2 = 0.9995) and low limit of quantification (<1 ppb) were achieved by using 10 SPME fibers coated with polyacrylate (PA) to extract bisphenol A. It was also found that the analyte signals increased with the number of SPME fibers for extraction. Uncontroversial, a shorter extraction time was required by using mSPME to reach the same level of analyte signal as that by using single SPME fiber for a longer extraction time. Trace bisphenol A (4–20 ppb) in the polycarbonate (PC) baby milk bottles was rapidly detected using mSPME-TD-ESI/MS and the analysis was completed within 1 min. The use of multiple SPME fibers coated with different materials enable the concentration of different type of analytes in the solution. Ibuprofen, bisphenol A (BPA), and 4-n-nonylphenol (4-n-NP) were simultaneously detected by using PA and polydimethylsiloxane (PDMS) coated fibers for extraction.

Preparation and Thermal Properties of Modified Cu2O/Polypropylene (PP) Composite.

A uniform, monodispersed superfine cuprous oxide (Cu2O) sphere with a mean diameter of 850 nm has been synthesized by solution reduction. The study reported the synthesis and thermal properties of Cu2O/PP composites for the first time. The surface modification of the superfine Cu2O sphere was carried out by using a silane coupling agent KH-570. Fourier-transform infrared (FTIR) spectroscopy and the thermogravimetric analysis (TGA) curve revealed that the Cu2O had been successfully modified by silane coupling agent KH570. The scanning electron microscope (SEM) shows that the modified Cu2O can be uniformly dispersed in the polypropylene (PP) matrix, because through surface modification, there are some active functional groups on its surface, such as the ester group, which improves its compatibility with the PP matrix. The thermal stability of Cu2O/PP composites was improved by adding a small amount of Cu2O (1 wt % of PP). Therefore, based on the potential bacteriostasis of cuprous oxide, the low cost of PP and the results of this study, it is predicted that Cu2O/PP composites can be used in infant preparation (such as milk bottles) with low cost and good thermal stability in the near future.