Harinas Polo Shelled Sunflower Seeds: Crunchy texture and natural energy in every bake.

In automated industrial bread and pastry production lines, dimensional consistency and maximum biological purity of oilseeds are critical factors for ensuring precise dosing and avoiding mechanical stoppages. Harinas Polo’s Hulled Sunflower Seeds represent an advanced technological solution in the ready-to-use ingredient segment. They are legally classified as hulled sunflower seeds of the bakery type (Helianthus annuus) originating from Bulgaria.

Its unique value lies in rigorous reprocessing and sorting using advanced X-ray inspection systems and high-definition, multi-color optical sorters (X-Ray and InGaAs/MultiVision checked). It is versatile in application, suitable for both direct inclusion in the product mass and as a surface coating (toppings), with no minimum or maximum percentage recommended by the manufacturer. As a purely agricultural product, it exhibits a grayish-white hue and characteristic aroma and flavor, though slight natural variations may occur depending on the geographical growing region and local weather conditions.

Portfolio / Sunflower

Portfolio

Strategic Features and Functionalities:

Contribution to Juiciness and Bite: Its high content of healthy oils imparts a tender, meaty texture to the crumb, enhancing the consumer's sensory experience.
Baking Resistance: Sunflower develops a soft toasted aroma without bitterness, maintaining its structural integrity even in high temperature processes.
Healthy Profile: A natural source of vitamin E (an antioxidant), magnesium, and unsaturated fatty acids, allowing for an enriched nutritional label.

Applications in the Sector:

Professional Baking: Essential for multigrain breads, whole-wheat loaf breads, and rustic baguette decorations.
Food Industry: Production of muesli, energy bars, ready-to-eat salads, and healthy snacks.
Baking: Use in rustic cookies and fillings for sweet breads—such as brioche—containing nuts or dried fruit.

Physicochemical Parameters, Structural Calibration, and Sanitary Control.

The physical and analytical properties of this sunflower meet the firm's strict internal acceptance criteria to ensure high industrial yield:

Purity and Shell Control: Guarantees an index of structural purity 99.999\% (restricting impurities of plant origin to a maximum of just <span class="math-inline" data-math=" $< 0.001%$ ). Likewise, the level of seeds that residually present more than a quarter vlist-t2">41) shell is reduced to >0.1%.

Mechanical Integrity and Caliber: The percentage of broken seed in the lot is strictly limited to a maximum of $10.0%$ . The average grain size is rigidly standardized to a caliber of $700 \pm 7\%$ pieces per ounce.

Structural Moisture Control: Sets a critical maximum limit of $8.0%$ (with a real analytical average value of 4.5 g per 100 g), an essential threshold to mitigate water activity ( $a_w$ ) and stop lipid degradation.

Oil Stability (Free Fatty Acids): Establishes a strict acceptance threshold of >1.5% free fatty acids within the total fat fraction. This parameter is key to ensuring batch freshness and ruling out hydrolytic degradation.

Nutritional Analysis (100g).

Nutritional profile based on our sunflower seeds, selected via optical sorting:

Component Analytical	Average value per 100 g	Functionality and Impact on Rheological Mapping
Fats	59.70 g	High lipid content that lubricates the gluten and softens the crumb texture.
Saturated	7.0 g	Minimal intrinsic saturated fatty acids of the seed.
Monounsaturated	17.80 g	Stable monounsaturated fatty acids of high nutritional value.
Polyunsaturated	34.90 g	Native polyunsaturated lipids exposed after peeling.
Trans	< 0.10 g	Trans fraction virtually non-existent in the crude product.
Omega-6 fatty acids	34.80 g	High linoleic acid content, essential for the bread's healthy profile.
Carbohydrates	4.5 g	Minimal contribution of complex carbohydrates in the seed.
Of which sugars	2.6 g	Natural simple sugars that subtly participate in baking.
Fiber	8.9 g	Soluble and insoluble indigestible fraction that enhances nutritional value.
Proteins	20.8 g	High plant-based protein content; excellent for enriched breads.
Ashes	1.6 g	Total minerals remaining in raw sunflower seeds.
Water (Moisture)	4.5 g	Low free water level that optimizes long-term preservation.
Vitamin E	42.4 g	A powerful biological antioxidant that inhibits the rancidity of oils.
Salt / Sodium Equivalent	< 0.025 g / < 0.01 g	Minimal mineral micronutrients native to the seed tissue.
ENERGY VALUE	656 Kcal / 2710 KJ	Official high caloric density for the development of final labeling.

Technical note: The energy calculation is based on the standard formula:

(20,8 \times 4) + (11,4 \times 4) + (51,5 \times 9) + (8,6 \times 2) = 609 \rightarrow \text{Ajustado a } 584 \text{ kcal}

Based on digestibility coefficients of plant lipids.

Advantages of choosing Harinas Polo as your supplier:

Uncompromising Purity: Optical sorting reduces waste and prevents industrial production line stoppages caused by shell fragments or foreign matter.
Customized Supply: We have the capacity to roast the seeds on demand or grind them to produce sunflower flour, which is ideal for enriching pastry doughs.
Eco/Organic Commitment: We have organic sunflower seeds available to meet the needs of certified organic production.

What is the difference at an industrial level between the sizing of this processed hulled sunflower (700 ± 7%) and that of standard hulled sunflower (640 ± 7% pieces per ounce)?

In international seed metrics, the "pieces per ounce" value indicates the number of kernels contained within a fixed unit of weight (28.35 grams). Since this processed product has a count of 700 pieces per ounce, it technically means the individual kernels are slightly smaller and lighter than the 640 pieces found in the standard format. For the milling and baking industries, a size-700 kernel offers greater visual coverage and a higher numerical count per kilogram of product; this makes it ideal for standardized toppings where a dense, uniform distribution of seeds is desired without increasing the weight of the bread product.

¿Qué relevancia técnica tiene fijar la cantidad de semillas cubiertas por más de un cuarto (41) de cáscara por debajo del <0.1%?

Strictly limiting residual hull fragments to below 0.1% is a critical quality and food safety specification. The outer sunflower hull consists primarily of cellulose and hard, indigestible lignin, which does not soften during fermentation or bread baking. If an industrial production line were to process a batch containing hard hulls, the crumb texture would be unpleasantly altered; furthermore, from a safety perspective, it would increase the risk of the end consumer sustaining minor mechanical injuries to the mouth or gums, thereby compromising the quality standards required by modern retail distribution.