foreach($optionQty as $key => $qty) {
            if($qty > 0) {
                $params = [
                    'form_key' => $this->formKey->getFormKey(),
                    'product' => $productloaded->getId(),
                    'qty' => $qty,
                    'super_attribute' => [
                        $attributeId => $key
                    ],
                ];
                $productloaded->addCustomOption('additional_options', json_encode($additionalOptions));
                $this->cart->addProduct($productloaded, $params);

            }
 $this->cart->save();

        }

Array
(
    [179] => 3
    [180] => 0
    [181] => 3
    [183] => 0
    [184] => 0
    [185] => 3
    [186] => 0
    [187] => 0
    [188] => 0
)