Correction: Schubert et al. Microencapsulation of Bacteriophages for the Delivery to and Modulation of the Human Gut Microbiota through Milk and Cereal Products. Appl. Sci. 2022, 12, 6299

The authors would like to make the following corrections to this paper [1]:

Error in Figure

In the original publication, there was a mistake in Figure 6a as published. A calculation error caused the bacteriophage titers given to be one decade too high. The corrected Figure 6a appears below.

Error in Table

In the original publication, there was a mistake in Table 2 as published. The calculation of the encapsulation efficiency was repeated by using the absolute (non-logarithmized) bacteriophage titers instead of the logarithmized values. The corrected

Table 2. Analysis of the bacteriophage K5 capsules regarding physical and biological parameters. Capsules were mainly composed of sodium alginate and milk protein (either micellar casein or whey protein isolate).

Capsules Characteristics	Alginate + Micellar Casein Capsules	Alginate + Whey Protein Isolate Capsules
Humidity (%)	8.70 ± 0.86	9.43 ± 0.32
Water activity (–)	0.15 ± 0.03	n.d. *
Particle diameter d10,3 (µm)	3.6 ± 1.2	5.1 ± 0.4
Particle diameter d50,3 (µm)	8.9 ± 0.7	12.0 ± 1.9
Particle diameter d90,3 (µm)	17.5 ± 4.4	46.2 ± 2.9
Encapsulation efficiency (%)	4.2 ± 2.1 **	3.6 ± 2.1 ***
Bacteriophage titer (pfu g−1)	(3.4 ± 1.7) × 107	(1.6 ± 0.9) × 107

* n.d.—not determined. ** Values inserted into Equation (3): N_S = (3.6 ± 0.3) × 10⁷ pfu mL^-1, N_C^## = (1.5 ± 0.7) × 10⁶ pfu mL⁻¹. *** Values inserted into Equation (3): N_S = (2.0 ± 0.1) × 10⁷ pfu mL⁻¹, N_C^## = (7.3 ± 4.1) × 10⁵ pfu mL⁻¹.

is presented below.

Text Correction

With regard to the corrected Figure 6a and Table 2 (see above), the text following passages has been adjusted accordingly:

(1) Abstract:

Powdered capsules with particle sizes of ~10 µm and bacteriophage K5 titers of ~10⁷ plaque-forming units (pfu) g⁻¹ were obtained.

(2) Section 2.4.2., Paragraph 1:

The stability of the encapsulated bacteriophages (Section 2.2) with an initial bacteriophage titer N_C* = 1.5 × 10⁷–3.0 × 10⁷ pfu g⁻¹ was analyzed in simulated gastric fluid (SGF).

(3) Section 3.4., Paragraph 8:

The most important quality parameter of the capsules is the encapsulation efficiency, which was roughly 4% in this study (Table 2) (calculated with absolute bacteriophage titers; calculation with logarithmized bacteriophage titers would correspond to an encapsulation efficiency of around 80%).

(4) Section 3.4., Paragraph 10:

The capsules produced in this study had bacteriophage titers of around 10⁷ pfu g⁻¹.

The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.