Chemical and Microbiological Quality Evaluation of Powdered Etawa Goat Milk Product

Authors

  • Ade Krismaningrum Universitas Ahmad Dahlan
  • Safinta Nurindra Rahmadhia Universitas Ahmad Dahlan
  • Rabia Mehboob Bahauddin Zakariya University Multan
  • Hamed Kioumarsi Gilan Agricultural and Natural Resources Research and Education Center

DOI:

https://doi.org/10.59247/ijase.v4i1.166

Keywords:

Etawa Goat Milk, Chemical Quality, Food Safety, Microbiological Quality, Powdered Milk

Abstract

Powdered Etawa goat milk products are increasingly developed as shelf-stable dairy products; however, their quality should be evaluated according to the characteristics of the product and the applicable quality requirements. This study aimed to evaluate the chemical and microbiological characteristics of a powdered Etawa goat milk product produced by a powdered Etawa goat milk processing plant in Yogyakarta and assess its conformity with SNI 2970:2015. The study used a descriptive observational design and a single product sample obtained from one production batch. The product was produced using an open-pan crystallization process involving the addition of refined sugar and seed powder. Proximate characteristics, heavy metals, prohibited chemicals, other chemical contaminants, and microbiological parameters were evaluated using laboratory analyses and compared descriptively with SNI 2970:2015. Moisture (1.54%) and fat (29.12%) complied with the specified requirements, whereas protein content (16.87%) was substantially lower than the 32% minimum specified for milk powder. Pb, Cd, Sn, Hg, As, melamine, alcohol, caffeine, formaldehyde, borax, methanyl yellow, and rhodamine B were not detected or were negative, while quinine was reported as <6 mg/kg. Salmonella spp. and Staphylococcus aureus were not detected. The results indicate satisfactory chemical and microbiological safety for the analyzed batch; however, the low protein content should be interpreted in relation to the product formulation and the applicability of the milk-powder standard to this sugar-crystallized product. Because only one batch was evaluated without analytical replication, the findings should not be generalized to all production batches or commercial products.

References

K. Bodor, B. Tamási, Á. Keresztesi, Z. Bodor, K. Csongor Orbán, and R. Szép, “A comparative analysis of the nutritional composition of several dairy products in the Romanian market,” Heliyon, vol. 10, no. 11, p. e31513, Jun. 2024, https://doi.org/10.1016/j.heliyon.2024.e31513.

B. Walther et al., “Comparison of nutritional composition between plant-based drinks and cow’s milk,” Front. Nutr., vol. 9, Oct. 2022, https://doi.org/10.3389/fnut.2022.988707.

M. Hovjecki et al., “Fortification of goat milk yogurt with goat whey protein concentrate – Effect on rheological, textural, sensory and microstructural properties,” Food Biosci., vol. 56, p. 103393, Dec. 2023, https://doi.org/10.1016/j.fbio.2023.103393.

Y. Bai, L. Li, F. Wang, L. Zhang, and L. Xiong, “Impact of Dairy Imports on Raw Milk Production Technology Progress in China,” Int. J. Environ. Res. Public Health, vol. 19, no. 5, p. 2911, Mar. 2022, https://doi.org/10.3390/ijerph19052911.

M. A. Acquavia, A. Villone, R. Rubino, and G. Bianco, “A Comprehensive Review of Milk Components: Recent Developments on Extraction and Analysis Methods,” Molecules, vol. 30, no. 9, p. 1994, Apr. 2025, https://doi.org/10.3390/molecules30091994.

W. M. dos Santos et al., “Goat milk as a natural source of bioactive compounds and strategies to enhance the amount of these beneficial components,” Int. Dairy J., vol. 137, p. 105515, Feb. 2023, https://doi.org/10.1016/j.idairyj.2022.105515.

Q. H. ALKaisy, J. S. Al‐Saadi, A. K. J. AL‐Rikabi, A. B. Altemimi, M. A. Hesarinejad, and T. G. Abedelmaksoud, “Exploring the health benefits and functional properties of goat milk proteins,” Food Sci. Nutr., vol. 11, no. 10, pp. 5641–5656, Oct. 2023, https://doi.org/10.1002/fsn3.3531.

G. A. Nayik et al., “Recent Insights Into Processing Approaches and Potential Health Benefits of Goat Milk and Its Products: A Review,” Front. Nutr., vol. 8, Dec. 2021, https://doi.org/10.3389/fnut.2021.789117.

M. de Lira Andrade et al., “Physicochemical, microstructural, technological, and sensory properties of reconstituted goat milk beverage powder with added texture enhancers,” Powder Technol., vol. 466, p. 121462, Dec. 2025, https://doi.org/10.1016/j.powtec.2025.121462.

A. I. Ibrahim, N. Rifda, M. Erminawati, and D. Hidayah, “Optimizing Dehydration Conditions of Cow’s and Goat Milk Yogurt Powder,” Int. J. Innov. Technol. Explor. Eng., vol. 9, no. 3S, pp. 68–71, Feb. 2020, https://doi.org/10.35940/ijitee.C1015.0193S20.

K. Samborska et al., “Innovations in spray drying process for food and pharma industries,” J. Food Eng., vol. 321, p. 110960, May 2022, https://doi.org/10.1016/j.jfoodeng.2022.110960.

S. Zhang, G. Gong, H. Wang, S. Chen, J. Wang, and J. Qi, “Advances and challenges of the spray drying technology: Towards accurately constructing inorganic multi-functional materials and related applications,” Sustain. Mater. Technol., vol. 43, p. e01250, Apr. 2025, https://doi.org/10.1016/j.susmat.2025.e01250.

M. de L. Andrade et al., “Improving the rheological properties of ultra‐processed powdered goat milk beverage using texture additives,” J. Food Sci., vol. 89, no. 11, pp. 7034–7043, Nov. 2024, https://doi.org/10.1111/1750-3841.17335.

A. Arslan and İ. Alibaş, “Assessing the effects of different drying methods and minimal processing on the sustainability of the organic food quality,” Innov. Food Sci. Emerg. Technol., vol. 94, p. 103681, Jun. 2024, https://doi.org/10.1016/j.ifset.2024.103681.

M. Michel, A. L. Eldridge, C. Hartmann, P. Klassen, J. Ingram, and G. W. Meijer, “Benefits and challenges of food processing in the context of food systems, value chains and sustainable development goals,” Trends Food Sci. Technol., vol. 153, p. 104703, Nov. 2024, https://doi.org/10.1016/j.tifs.2024.104703.

M. Mititelu, L. Hîncu, E. Ozon, D. Baconi, I. Paunica, and O. Bălălău, “Analysis of potentially toxic contaminants in milk powder,” J. Mind Med. Sci., vol. 8, no. 2, pp. 237–244, Oct. 2021, https://doi.org/10.22543/7674.82.P237244.

M. Pakdel, A. Olsen, and E. M. S. Bar, “A Review of Food Contaminants and Their Pathways Within Food Processing Facilities Using Open Food Processing Equipment,” J. Food Prot., vol. 86, no. 12, p. 100184, Dec. 2023, https://doi.org/10.1016/j.jfp.2023.100184.

R. Sivachandiran et al., “Milk quality standard evaluation methods to assess physical, chemical and biological parameters,” in Handbook of Milk Production, Quality and Nutrition, pp. 669–680, 2025, https://doi.org/10.1016/B978-0-443-24820-7.00028-6.

E. Lang and A. S. Sant’Ana, “Microbial contaminants in powdered infant formula: what is the impact of spray-drying on microbial inactivation?,” Curr. Opin. Food Sci., vol. 42, pp. 195–202, Dec. 2021, https://doi.org/10.1016/j.cofs.2021.06.007.

I. M. C. M. Rietjens et al., “The definition of chemical contaminants in food: Ambiguity and consequences,” Regul. Toxicol. Pharmacol., vol. 155, p. 105739, Jan. 2025, https://doi.org/10.1016/j.yrtph.2024.105739.

M. R. S. Souto, A. M. Pimenta, R. I. L. Catarino, M. F. C. Leal, and E. T. R. Simões, “Heavy Metals in Milk and Dairy Products: Safety and Analysis,” Pollutants, vol. 5, no. 3, p. 29, Sep. 2025, https://doi.org/10.3390/pollutants5030029.

Z. Zhang and Y. Bai, “Research on Whether Quality Policies Can Promote the High-Quality Development of China’s Manufacturing Industry and Its Configuration Paths in the Context of Sustainable Development,” Sustainability, vol. 16, no. 21, p. 9539, Nov. 2024, https://doi.org/10.3390/su16219539.

Z. Karimi, K. Campbell, Z. Kevei, A. Patriarca, A. Koidis, and M. Anastasiadi, “A critical review of conventional and emerging technologies for the detection of contaminants, allergens and adulterants in plant-based milk alternatives,” Curr. Res. Food Sci., vol. 10, p. 101067, 2025, https://doi.org/10.1016/j.crfs.2025.101067.

P. Troka, M. Luarasi, and I. Kapaj, “Food Safety Practices in Artisanal and Semi-Automated Dairy Processors: Evidence from Fier, Albania,” Agriculture, vol. 15, no. 7, p. 762, Apr. 2025, https://doi.org/10.3390/agriculture15070762.

Z. H. Abdurrahman, A. Pramono, F. H. Barido, R. D. Yudhani, E. Pramono, and M. Cahyadi, “Bioactive compounds in goat milk as ACE-inhibitory agents: A systematic review,” Appl. Food Res., vol. 6, no. 1, p. 102124, Jun. 2026, https://doi.org/10.1016/j.afres.2026.102124.

B. Yue et al., “Nutritional dynamics and untargeted metabolomics reveal breed and lactation-dependent shifts in goat milk composition: from colostrum to mature milk,” Food Chem. X, vol. 37, p. 104045, Jul. 2026, https://doi.org/10.1016/j.fochx.2026.104045.

M. Farag, M. Sheashea, C. Zhao, and A. Maamoun, “UV Fingerprinting Approaches for Quality Control Analyses of Food and Functional Food Coupled to Chemometrics: A Comprehensive Analysis of Novel Trends and Applications,” Foods, vol. 11, no. 18, p. 2867, Sep. 2022, https://doi.org/10.3390/foods11182867.

Jyoti and N. A. Singh, “Unveiling the culturable bacterial diversity, pathogens and impact of seasonality on microflora of raw goat milk: A phylogenetic outlook,” Int. Dairy J., vol. 153, p. 105904, Jun. 2024, https://doi.org/10.1016/j.idairyj.2024.105904.

M. Yan et al., “Heavy metal levels in milk and dairy products and health risk assessment: A systematic review of studies in China,” Sci. Total Environ., vol. 851, p. 158161, Dec. 2022, https://doi.org/10.1016/j.scitotenv.2022.158161.

S. Hasanvand, Z. Hashami, M. Zarei, S. Merati, M. Bashiry, and R. Nag, “Is the milk we drink safe from elevated concentrations of prioritised heavy metals/metalloids? – A global systematic review and meta-analysis followed by a cursory risk assessment reporting,” Sci. Total Environ., vol. 948, p. 175011, Oct. 2024, https://doi.org/10.1016/j.scitotenv.2024.175011.

J. B. S. Amaral et al., “Light cream cheese spread of goat milk enriched with phytosterols: Physicochemical, rheological, and microbiological characterization,” LWT, vol. 157, p. 113103, Mar. 2022, https://doi.org/10.1016/j.lwt.2022.113103.

S. Poo, M. Palma, and O. Muñoz, “Determining Moisture Content in Milk Powder: Challenges in the Evaluation of Performance by Proficiency Testing Using Independent Reference Values,” Sensors, vol. 25, no. 5, p. 1579, Mar. 2025, https://doi.org/10.3390/s25051579.

M. Tian, J. Cheng, H. Wang, Q. Xie, Q. Wei, and M. Guo, “Effects of polymerized goat milk whey protein on physicochemical properties and microstructure of recombined goat milk yogurt,” J. Dairy Sci., vol. 105, no. 6, pp. 4903–4914, Jun. 2022, https://doi.org/10.3168/jds.2021-21581.

W. Zhang, H. Xue, X. Pan, and J. Liu, “Spectral feature selection algorithm based on improved zebra optimization algorithm for milk powder fat content detection,” J. Food Compos. Anal., vol. 148, p. 108234, Dec. 2025, https://doi.org/10.1016/j.jfca.2025.108234.

Y. Mazaheri, M. Jafari, H. Eghbaljoo, G. Mirzaei, P. Sadighara, and T. Zeinali, “A method validation of determination of melamine in marketed infant formula and milk powder of Iran,” Sci. Rep., vol. 14, no. 1, p. 19701, Aug. 2024, https://doi.org/10.1038/s41598-024-70745-4.

J. Liang et al., “Preparation, identification, and anti-melanogenesis activity of royal jelly protein peptides,” J. Funct. Foods, vol. 129, p. 106897, Jun. 2025, https://doi.org/10.1016/j.jff.2025.106897.

M. Ning et al., “HS-SPME-GC-MS combined with multivariate statistical analysis reveals off-flavor composition and biomarker generation mechanism of whole milk powder,” J. Food Compos. Anal., vol. 137, p. 106962, Jan. 2025, https://doi.org/10.1016/j.jfca.2024.106962.

S. Najmul Hejaz Azmi et al., “High performance liquid chromatographic method optimized by Box-Behnken design model to determine caffeine in pharmaceutical preparations and urine samples,” J. Chromatogr. B, vol. 1234, p. 124035, Feb. 2024, https://doi.org/10.1016/j.jchromb.2024.124035.

A. O. Raji, R. M. Oluwanisola, O. M. Oyebanji, and B. A. Sunmonu, “Nutrients composition, sensory properties and storage stability of processed Nigerian soy cheese (Beske),” Meas. Food, vol. 10, p. 100088, Jun. 2023, https://doi.org/10.1016/j.meafoo.2023.100088.

M. K. A. Mohd Fauzi, C. C. Okwuwa, N. H. Ramli, A. A. Asmawi, R. Jose, and F. Adam, “Moisture migration as an influencing factor in food freshness biocomposite packaging: A trend analysis review,” Next Mater., vol. 9, p. 101205, Oct. 2025, https://doi.org/10.1016/j.nxmate.2025.101205.

G. Cui et al., “Exploring the role of milk fat structure and crystallization in enhancing whipped cream properties and stability,” LWT, vol. 228, p. 118054, Jul. 2025, https://doi.org/10.1016/j.lwt.2025.118054.

E. Alehosseini, P. L. H. McSweeney, and S. Miao, “Formulation factors influencing the production of dairy-free cheese alternatives,” J. Futur. Foods, vol. 6, no. 6, pp. 1024–1036, Nov. 2026, https://doi.org/10.1016/j.jfutfo.2024.10.013.

F. Xiao, J. Shi, and Y. Zou, “Effects of different heat treatment processes on the physicochemical properties and structural changes of casein and whey protein from bovine milk,” J. Dairy Sci., vol. 108, no. 11, pp. 12108–12122, Nov. 2025, https://doi.org/10.3168/jds.2025-27358.

T. Najib, M. M. Heydari, K. Tu, M. Vu, and V. Meda, “Protein structural changes in lentil flour during soaking/germination and thermal treatments: Indication of nutritional and functional properties,” Food Chem. Adv., vol. 3, p. 100475, Dec. 2023, https://doi.org/10.1016/j.focha.2023.100475.

L. S. Mustapha, O. V. Obayomi, and K. S. Obayomi, “A comprehensive review on potential heavy metals in the environment: Persistence, bioaccumulation, ecotoxicology, and agricultural impacts,” Ecol. Front., vol. 46, no. 2, pp. 434–449, Apr. 2026, https://doi.org/10.1016/j.ecofro.2025.10.009.

Q. Almatawah, S. Al-Mutairi, and J. Varghese, “Monitoring foodborne pathogens of food served at an institutional cafeteria,” Appl. Food Res., vol. 4, no. 2, p. 100497, Dec. 2024, https://doi.org/10.1016/j.afres.2024.100497.

D. Marcu et al., “Strategies to Manage Salmonella in Meat, Egg, and Dairy Processing Plants,” J. Food Prot., vol. 89, no. 3, p. 100708, Mar. 2026, https://doi.org/10.1016/j.jfp.2026.100708.

V. Léguillier et al., “A review and meta-analysis of Staphylococcus aureus prevalence in foods,” The Microbe, vol. 4, p. 100131, Sep. 2024, https://doi.org/10.1016/j.microb.2024.100131.

S. Das, A. Saha, and K. Aggarwal, “Natural biopreservatives for dairy products: Microbial and plant-derived solutions and recent advancements,” Int. Dairy J., vol. 166, p. 106256, Jul. 2025, https://doi.org/10.1016/j.idairyj.2025.106256.

K. K. Dash et al., “A comprehensive review on heat treatments and related impact on the quality and microbial safety of milk and milk-based products,” Food Chem. Adv., vol. 1, p. 100041, Oct. 2022, https://doi.org/10.1016/j.focha.2022.100041.

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Published

2026-08-31

How to Cite

Krismaningrum, A., Rahmadhia, S. N., Mehboob, R., & Kioumarsi, H. (2026). Chemical and Microbiological Quality Evaluation of Powdered Etawa Goat Milk Product. Indonesian Journal of Applied Science and Engineering, 4(1), 61–70. https://doi.org/10.59247/ijase.v4i1.166

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