Improving Concentration of Healthy Fatty Acids in Milk, Cheese and Yogurt by Adding a Blend of Soybean and Fish Oils to the Ration of Confined Dairy Cows

Gagliostro, Gerardo Antonio; Antonacci, Liliana Elisabet; Pérez, Carolina; Rossetti, Luciana; Carabajal, Augusto

doi:10.4236/ojas.2020.101010

Cited by 4 publications

(3 citation statements)

References 54 publications

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“…The abundance of free and esterified LNA metabolites in bovine milk is not surprising since LNA is highly concentrated in bovine milk relative to other PUFAs (Dias et al., 2020). The high concentration of milk LNA is likely due to the high LNA composition of cattle feed (Gagliostro et al., 2020; Khiaosa‐Ard et al., 2010; Muruz & Çetinkaya, 2019).…”

Section: Resultsmentioning

confidence: 99%

Method optimization of oxylipin hydrolysis in nonprocessed bovine milk indicates that the majority of oxylipins are esterified

Teixeira

Dias

Vieira

et al. 2021

Journal of Food Science

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The oxidation of polyunsaturated fatty acids produces bioactive primary oxidation products known as oxylipins. In many biological matrices, the majority of oxylipins are bound (i.e. esterified), and a relatively small proportion (<10%) exists in the free form. The present study tested whether this extends to bovine milk following method evaluation of various extraction and base hydrolysis protocols for measuring bound oxylipins. Free (unbound) oxylipins were also measured. Folch extraction followed by sodium carbonate hydrolysis in the presence of methanol containing 0.1% of acetic acid and 0.1% of butylated hydroxytoluene resulted in greater oxylipin concentrations and better surrogate standard recoveries compared to other methods that did not involve Folch extraction or the addition of methanol with hydrolysis base. Sodium hydroxide was better than sodium carbonate in hydrolyzing bound oxylipins under the same conditions. Milk analysis of oxylipins with mass‐spectrometry following Folch extraction and sodium hydroxide hydrolysis revealed that 95% of oxylipins in bovine milk were esterified. Most of the detected oxylipins were derived from linoleic acid, which accounted for 92 and 88% of oxylipins in the free and esterified pools, respectively. These results demonstrate that the majority of bovine milk oxylipins are bound, and that linoleic‐acid derived metabolites are the most abundant oxylipin species in free and bound lipid pools. Additional studies are needed to understand the role of different oxylipin pools in both calf and human nutrition. Practical Application A method involving Folch lipid extraction and sodium hydroxide hydrolysis was validated for esterified oxylipin measurements in bovine milk. Application of the method revealed that the majority (∼95%) of oxylipins in bovine milk were bound. Linoleic‐acid derived oxylipins were the most abundant species in both bound and free milk fractions (88‐92%). The results highlight the presence of a new pool of oxidized lipids in milk, potentially involved in modifying its sensory and nutritional properties.

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Section: Resultsmentioning

confidence: 99%

Method optimization of oxylipin hydrolysis in nonprocessed bovine milk indicates that the majority of oxylipins are esterified

Teixeira

Dias

Vieira

et al. 2021

Journal of Food Science

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“…where F = fat content (%) and M = milk yield in kg. Energy corrected milk (ECM) yield based on Equation (2).…”

Section: Milk Chemical Compositionmentioning

confidence: 99%

“…In humans, the high intake of saturated fatty acids (SFA) has been associated with prospective risk of cardiovascular diseases, obesity, and metabolic syndrome [ 1 ], while that of monounsaturated (MUFA) and polyunsaturated fatty acids (PUFA) is associated with an improvement of dietary lipoprotein profiles, resulting in a plethora of benefits for human health [ 2 ]. Thus, manipulations in ruminants’ diets are studied aiming to alter milk fatty acids (FA) and manufacture functional dairy products with high economic and health potential.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Optimum Level of Supplementation with Camelina Seeds in Ewes’ Diets to Improve Milk Quality

Christodoulou

Mavrommatis

Mitsiopoulou

et al. 2021

Foods

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Camelina sativa seeds are rich in bioactive compounds such as polyunsaturated fatty acids (PUFA) and antioxidants, thus, their supplementation in ewes’ diets, may be an effective way to develop high nutritional dairy products. Therefore, the present study investigates the effect of the dietary inclusion of Camelina sativa seeds in ewes’ oxidative status and milk quality. Forty-eight dairy Chios ewes were divided into four homogenous groups and were fed individually. The concentrate of the control group (CON) had no inclusion of Camelina seeds, while the treatment groups (CSS6, CSS11, CSS16) were supplemented with 6%, 11%, and 16%, respectively. Including Camelina seeds in 6% and 11%, had no impact on milk performance, while in the CSS16, milk fat was significantly decreased compared to the CON. Supplementing Camelina seeds improved milk quality from a human health perspective by modifying the content of saturated fatty acid, the proportions of α-linolenic (C18:3 n-3), and C18:2 cis-9, trans-11 (CLA), and the ω6/ω3 ratio. Furthermore, the activity of catalase (CAT) was significantly increased in the CSS11 and CSS16, and superoxide dismutase (SOD) activity also significantly upsurged in the CSS16. Still, the levels of malondialdehyde (MDA) were significantly increased in the CSS11 compared to the CON and CSS6, and in the CSS16 compared to the CSS6. In CSS16, protein carbonyls were significantly increased. Finally, in the CSS-fed ewes, milk oxidative stability was fortified, as suggested by the modifications in the activities of SOD, CAT, and glutathione peroxidase (GSH-Px), in the antioxidant capacity, and the oxidative stress biomarkers. Consequently, the incorporation of 6% Camelina seeds in the concentrates of ewes improves milk’s fatty acid profile and oxidative status. However, more research is required regarding the possible negative effects of the constant consumption of Camelina seeds by ewes.

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Effect of Chlorophytum borivilianum supplementation on milk production, composition and fatty acid profile in crossbred cows during hot-humid season

Devi

Singh

Mehla

et al. 2021

Trop Anim Health Prod

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Improving Concentration of Healthy Fatty Acids in Milk, Cheese and Yogurt by Adding a Blend of Soybean and Fish Oils to the Ration of Confined Dairy Cows

Cited by 4 publications

References 54 publications

Method optimization of oxylipin hydrolysis in nonprocessed bovine milk indicates that the majority of oxylipins are esterified

Method optimization of oxylipin hydrolysis in nonprocessed bovine milk indicates that the majority of oxylipins are esterified

Assessing the Optimum Level of Supplementation with Camelina Seeds in Ewes’ Diets to Improve Milk Quality

Effect of Chlorophytum borivilianum supplementation on milk production, composition and fatty acid profile in crossbred cows during hot-humid season

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